22121011110020 has 24 divisors (see below), whose sum is σ = 48473867824704. Its totient is φ = 8463691207136.

The previous prime is 22121011109987. The next prime is 22121011110041. The reversal of 22121011110020 is 2001111012122.

It is a junction number, because it is equal to n+sod(n) for n = 22121011109977 and 22121011110004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24044576834 + ... + 24044577753.

It is an arithmetic number, because the mean of its divisors is an integer number (2019744492696).

Almost surely, 2^{22121011110020} is an apocalyptic number.

22121011110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121011110020 is an abundant number, since it is smaller than the sum of its proper divisors (26352856714684).

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

22121011110020 is a wasteful number, since it uses less digits than its factorization.

22121011110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48089154619 (or 48089154617 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22121011110020 its reverse (2001111012122), we get a palindrome (24122122122142).

The spelling of 22121011110020 in words is "twenty-two trillion, one hundred twenty-one billion, eleven million, one hundred ten thousand, twenty".