212000100222021 has 32 divisors (see below), whose sum is σ = 304620801269760. Its totient is φ = 130799896121664.

The previous prime is 212000100222013. The next prime is 212000100222041. The reversal of 212000100222021 is 120222001000212.

It is not a de Polignac number, because 212000100222021 - 2³ = 212000100222013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000100222041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231497205 + ... + 232411178.

It is an arithmetic number, because the mean of its divisors is an integer number (9519400039680).

Almost surely, 2^{212000100222021} is an apocalyptic number.

It is an amenable number.

212000100222021 is a deficient number, since it is larger than the sum of its proper divisors (92620701047739).

212000100222021 is a wasteful number, since it uses less digits than its factorization.

212000100222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463908625.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212000100222021 its reverse (120222001000212), we get a palindrome (332222101222233).

The spelling of 212000100222021 in words is "two hundred twelve trillion, one hundred million, two hundred twenty-two thousand, twenty-one".