212020111200021 has 16 divisors (see below), whose sum is σ = 284925783172800. Its totient is φ = 140233322331648.

The previous prime is 212020111200013. The next prime is 212020111200041. The reversal of 212020111200021 is 120002111020212.

212020111200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212020111200021 - 2³ = 212020111200013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020111200011) 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, 341228956 + ... + 341849733.

It is an arithmetic number, because the mean of its divisors is an integer number (17807861448300).

Almost surely, 2^{212020111200021} is an apocalyptic number.

It is an amenable number.

212020111200021 is a deficient number, since it is larger than the sum of its proper divisors (72905671972779).

212020111200021 is a wasteful number, since it uses less digits than its factorization.

212020111200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683079508.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212020111200021 its reverse (120002111020212), we get a palindrome (332022222220233).

The spelling of 212020111200021 in words is "two hundred twelve trillion, twenty billion, one hundred eleven million, two hundred thousand, twenty-one".