22012121022 has 16 divisors (see below), whose sum is σ = 44028807312. Its totient is φ = 7336612800.

The previous prime is 22012121017. The next prime is 22012121029.

22012121022 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22012120992 and 22012121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012121029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125863 + ... + 244674.

It is an arithmetic number, because the mean of its divisors is an integer number (2751800457).

Almost surely, 2^22012121022 is an apocalyptic number.

22012121022 is an abundant number, since it is smaller than the sum of its proper divisors (22016686290).

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

22012121022 is a wasteful number, since it uses less digits than its factorization.

22012121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380443.

The product of its (nonzero) digits is 64, while the sum is 15.

The spelling of 22012121022 in words is "twenty-two billion, twelve million, one hundred twenty-one thousand, twenty-two".