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101222020220131 = 986979110255741
BaseRepresentation
bin10111000000111110010110…
…100011110000010011100011
3111021101201201121221201112201
4113000332112203300103203
5101231410144134021011
6555140430521034031
730215023010500636
oct2700762643602343
9437351647851481
10101222020220131
112a28602161a5a8
12b429609925917
1344632708122b5
141add259a61c1d
15ba803c77ecc1
hex5c0f968f04e3

101222020220131 has 4 divisors (see below), whose sum is σ = 101222040345664. Its totient is φ = 101222000094600.

The previous prime is 101222020220051. The next prime is 101222020220141. The reversal of 101222020220131 is 131022020222101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101222020220131 - 27 = 101222020220003 is a prime.

It is a super-2 number, since 2×1012220202201312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101222020220099 and 101222020220108.

It is not an unprimeable number, because it can be changed into a prime (101222020220141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4741921 + ... + 14997661.

It is an arithmetic number, because the mean of its divisors is an integer number (25305510086416).

Almost surely, 2101222020220131 is an apocalyptic number.

101222020220131 is a deficient number, since it is larger than the sum of its proper divisors (20125533).

101222020220131 is an equidigital number, since it uses as much as digits as its factorization.

101222020220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20125532.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 101222020220131 its reverse (131022020222101), we get a palindrome (232244040442232).

The spelling of 101222020220131 in words is "one hundred one trillion, two hundred twenty-two billion, twenty million, two hundred twenty thousand, one hundred thirty-one".

Divisors: 1 9869791 10255741 101222020220131