23131221100022 has 32 divisors (see below), whose sum is σ = 41161102663680. Its totient is φ = 9543400786080.

The previous prime is 23131221099971. The next prime is 23131221100027. The reversal of 23131221100022 is 22000112213132.

It is a junction number, because it is equal to n+sod(n) for n = 23131221099967 and 23131221100003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131221100027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288106022 + ... + 288186297.

It is an arithmetic number, because the mean of its divisors is an integer number (1286284458240).

Almost surely, 2^{23131221100022} is an apocalyptic number.

23131221100022 is a deficient number, since it is larger than the sum of its proper divisors (18029881563658).

23131221100022 is a wasteful number, since it uses less digits than its factorization.

23131221100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576292436.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 23131221100022 its reverse (22000112213132), we get a palindrome (45131333313154).

The spelling of 23131221100022 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred twenty-one million, one hundred thousand, twenty-two".