22111102121022 has 64 divisors (see below), whose sum is σ = 49244773824000. Its totient is φ = 7354027304064.

The previous prime is 22111102120993. The next prime is 22111102121039. The reversal of 22111102121022 is 22012120111122.

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 = 22111102120986 and 22111102121004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93617254 + ... + 93853142.

It is an arithmetic number, because the mean of its divisors is an integer number (769449591000).

Almost surely, 2^{22111102121022} is an apocalyptic number.

22111102121022 is an abundant number, since it is smaller than the sum of its proper divisors (27133671702978).

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

22111102121022 is a wasteful number, since it uses less digits than its factorization.

22111102121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239742 (or 239736 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22111102121022 its reverse (22012120111122), we get a palindrome (44123222232144).

The spelling of 22111102121022 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, one hundred twenty-one thousand, twenty-two".