120112200021 has 16 divisors (see below), whose sum is σ = 174716264448. Its totient is φ = 72792102000.

The previous prime is 120112199953. The next prime is 120112200023. The reversal of 120112200021 is 120002211021.

It is not a de Polignac number, because 120112200021 - 2²¹ = 120110102869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112200023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 853740 + ... + 984426.

It is an arithmetic number, because the mean of its divisors is an integer number (10919766528).

Almost surely, 2^120112200021 is an apocalyptic number.

120112200021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120112200021 is a deficient number, since it is larger than the sum of its proper divisors (54604064427).

120112200021 is a wasteful number, since it uses less digits than its factorization.

120112200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158552.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 120112200021 its reverse (120002211021), we get a palindrome (240114411042).

The spelling of 120112200021 in words is "one hundred twenty billion, one hundred twelve million, two hundred thousand, twenty-one".