22131201231022 has 48 divisors (see below), whose sum is σ = 36090806420592. Its totient is φ = 10173571349760.

The previous prime is 22131201231011. The next prime is 22131201231047. The reversal of 22131201231022 is 22013210213122.

It is a junction number, because it is equal to n+sod(n) for n = 22131201230984 and 22131201231002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85102618 + ... + 85362274.

It is an arithmetic number, because the mean of its divisors is an integer number (751891800429).

Almost surely, 2^{22131201231022} is an apocalyptic number.

22131201231022 is a deficient number, since it is larger than the sum of its proper divisors (13959605189570).

22131201231022 is a wasteful number, since it uses less digits than its factorization.

22131201231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260693 (or 260680 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 22131201231022 its reverse (22013210213122), we get a palindrome (44144411444144).

The spelling of 22131201231022 in words is "twenty-two trillion, one hundred thirty-one billion, two hundred one million, two hundred thirty-one thousand, twenty-two".