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10221031422 = 2327211588471
BaseRepresentation
bin10011000010011100…
…01000111111111110
3222101022200012020100
421201032020333332
5131413041001142
64410120101530
7511200222300
oct114116107776
928338605210
1010221031422
114375562208
121b930048a6
13c6b7294b4
146cd65b970
153ec4bdb4c
hex261388ffe

10221031422 has 36 divisors (see below), whose sum is σ = 25761173256. Its totient is φ = 2920294440.

The previous prime is 10221031319. The next prime is 10221031423. The reversal of 10221031422 is 22413012201.

It is a happy number.

10221031422 is a `hidden beast` number, since 1 + 0 + 2 + 210 + 31 + 422 = 666.

It is a super-2 number, since 2×102210314222 (a number of 21 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 = 10221031395 and 10221031404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221031423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5793354 + ... + 5795117.

It is an arithmetic number, because the mean of its divisors is an integer number (715588146).

Almost surely, 210221031422 is an apocalyptic number.

10221031422 is an abundant number, since it is smaller than the sum of its proper divisors (15540141834).

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

10221031422 is a wasteful number, since it uses less digits than its factorization.

10221031422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11588493 (or 11588483 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10221031422 its reverse (22413012201), we get a palindrome (32634043623).

The spelling of 10221031422 in words is "ten billion, two hundred twenty-one million, thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 11588471 23176942 34765413 69530826 81119297 104296239 162238594 208592478 243357891 486715782 567835079 730073673 1135670158 1460147346 1703505237 3407010474 5110515711 10221031422