21122000000120 has 64 divisors (see below), whose sum is σ = 47970409200480. Its totient is φ = 8369533034496.

The previous prime is 21122000000107. The next prime is 21122000000141. The reversal of 21122000000120 is 2100000022112.

It is a happy number.

It is a super-2 number, since 2×21122000000120² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143636072 + ... + 143783048.

Almost surely, 2^{21122000000120} is an apocalyptic number.

21122000000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122000000120 is an abundant number, since it is smaller than the sum of its proper divisors (26848409200360).

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

21122000000120 is a wasteful number, since it uses less digits than its factorization.

21122000000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180672 (or 180668 counting only the distinct ones).

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

Adding to 21122000000120 its reverse (2100000022112), we get a palindrome (23222000022232).

The spelling of 21122000000120 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred twenty", and thus it is an aban number.