120021000220000 has 240 divisors, whose sum is σ = 333219700875600. Its totient is φ = 42139032320000.

The previous prime is 120021000219959. The next prime is 120021000220027. The reversal of 120021000220000 is 22000120021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3026035 + ... + 15786034.

It is an arithmetic number, because the mean of its divisors is an integer number (1388415420315).

Almost surely, 2^{120021000220000} is an apocalyptic number.

120021000220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021000220000 is an abundant number, since it is smaller than the sum of its proper divisors (213198700655600).

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

120021000220000 is a wasteful number, since it uses less digits than its factorization.

120021000220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18812139 (or 18812116 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 120021000220000 its reverse (22000120021), we get a palindrome (120043000340021).

The spelling of 120021000220000 in words is "one hundred twenty trillion, twenty-one billion, two hundred twenty thousand".