131022222001020 has 108 divisors (see below), whose sum is σ = 462321269091864. Its totient is φ = 29947936455360.

The previous prime is 131022222000997. The next prime is 131022222001037. The reversal of 131022222001020 is 20100222220131.

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 = 131022222000984 and 131022222001002.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 7427554786 + ... + 7427572425.

Almost surely, 2^{131022222001020} is an apocalyptic number.

131022222001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131022222001020 is an abundant number, since it is smaller than the sum of its proper divisors (331299047090844).

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

131022222001020 is a wasteful number, since it uses less digits than its factorization.

131022222001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14855127240 (or 14855127228 counting only the distinct ones).

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

Adding to 131022222001020 its reverse (20100222220131), we get a palindrome (151122444221151).

The spelling of 131022222001020 in words is "one hundred thirty-one trillion, twenty-two billion, two hundred twenty-two million, one thousand, twenty".