22010121020 has 48 divisors (see below), whose sum is σ = 47370851136. Its totient is φ = 8585280000.

The previous prime is 22010121019. The next prime is 22010121109. The reversal of 22010121020 is 2012101022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22010120992 and 22010121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218070 + ... + 2227970.

It is an arithmetic number, because the mean of its divisors is an integer number (986892732).

Almost surely, 2^22010121020 is an apocalyptic number.

22010121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010121020 is an abundant number, since it is smaller than the sum of its proper divisors (25360730116).

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

22010121020 is a wasteful number, since it uses less digits than its factorization.

22010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12662 (or 12660 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22010121020 its reverse (2012101022), we get a palindrome (24022222042).

The spelling of 22010121020 in words is "twenty-two billion, ten million, one hundred twenty-one thousand, twenty".