2131231001022 has 24 divisors (see below), whose sum is σ = 4618456876800. Its totient is φ = 710288840160.

The previous prime is 2131231000963. The next prime is 2131231001047. The reversal of 2131231001022 is 2201001321312.

2131231001022 is a `hidden beast` number, since 21 + 312 + 310 + 0 + 1 + 0 + 22 = 666.

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 = 2131231000986 and 2131231001004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10016254 + ... + 10226817.

It is an arithmetic number, because the mean of its divisors is an integer number (192435703200).

Almost surely, 2^{2131231001022} is an apocalyptic number.

2131231001022 is an abundant number, since it is smaller than the sum of its proper divisors (2487225875778).

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

2131231001022 is a wasteful number, since it uses less digits than its factorization.

2131231001022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20248928 (or 20248925 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2131231001022 its reverse (2201001321312), we get a palindrome (4332232322334).

The spelling of 2131231001022 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, one thousand, twenty-two".