21022222001120 has 96 divisors (see below), whose sum is σ = 49746093854688. Its totient is φ = 8395162288128.

The previous prime is 21022222001101. The next prime is 21022222001251. The reversal of 21022222001120 is 2110022222012.

It is a happy number.

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, 1203530627 + ... + 1203548093.

It is an arithmetic number, because the mean of its divisors is an integer number (518188477653).

Almost surely, 2^{21022222001120} is an apocalyptic number.

21022222001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21022222001120 is an abundant number, since it is smaller than the sum of its proper divisors (28723871853568).

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

21022222001120 is a wasteful number, since it uses less digits than its factorization.

21022222001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29332 (or 29324 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21022222001120 its reverse (2110022222012), we get a palindrome (23132244223132).

The spelling of 21022222001120 in words is "twenty-one trillion, twenty-two billion, two hundred twenty-two million, one thousand, one hundred twenty".