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101231011011222 = 2327179210493749
BaseRepresentation
bin10111000001000110101110…
…011100111001101010010110
3111021102120221012201020022100
4113001012232130321222112
5101232032102304324342
6555144515012542530
730215461552115601
oct2701065634715226
9437376835636270
10101231011011222
112a2899156a0a64
12b42b2b8921a46
1344640743b9b21
141add86db5b338
15ba83b6c3ce4c
hex5c11ae739a96

101231011011222 has 24 divisors (see below), whose sum is σ = 222423066450000. Its totient is φ = 33268407374160.

The previous prime is 101231011011131. The next prime is 101231011011227. The reversal of 101231011011222 is 222110110132101.

It is a happy number.

101231011011222 is a `hidden beast` number, since 1 + 0 + 12 + 310 + 110 + 11 + 222 = 666.

101231011011222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1012310110112222 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101231011011195 and 101231011011204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231011011227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39605245597 + ... + 39605248152.

It is an arithmetic number, because the mean of its divisors is an integer number (9267627768750).

Almost surely, 2101231011011222 is an apocalyptic number.

101231011011222 is an abundant number, since it is smaller than the sum of its proper divisors (121192055438778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101231011011222 is a wasteful number, since it uses less digits than its factorization.

101231011011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79210493828 (or 79210493825 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 101231011011222 its reverse (222110110132101), we get a palindrome (323341121143323).

The spelling of 101231011011222 in words is "one hundred one trillion, two hundred thirty-one billion, eleven million, eleven thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 71 142 213 426 639 1278 79210493749 158420987498 237631481247 475262962494 712894443741 1425788887482 5623945056179 11247890112358 16871835168537 33743670337074 50615505505611 101231011011222