22102021121020 has 24 divisors (see below), whose sum is σ = 46416422584224. Its totient is φ = 8840393547456.

The previous prime is 22102021121009. The next prime is 22102021121021. The reversal of 22102021121020 is 2012112020122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22102021120985 and 22102021121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102021121021) 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, 25494312 + ... + 26346991.

It is an arithmetic number, because the mean of its divisors is an integer number (1934017607676).

Almost surely, 2^{22102021121020} is an apocalyptic number.

22102021121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22102021121020 is an abundant number, since it is smaller than the sum of its proper divisors (24314401463204).

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

22102021121020 is a wasteful number, since it uses less digits than its factorization.

22102021121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51862629 (or 51862627 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22102021121020 its reverse (2012112020122), we get a palindrome (24114133141142).

The spelling of 22102021121020 in words is "twenty-two trillion, one hundred two billion, twenty-one million, one hundred twenty-one thousand, twenty".