211012112200021 has 16 divisors (see below), whose sum is σ = 232807108046400. Its totient is φ = 189652936809600.

The previous prime is 211012112200013. The next prime is 211012112200037. The reversal of 211012112200021 is 120002211210112.

It is not a de Polignac number, because 211012112200021 - 2³ = 211012112200013 is a prime.

It is a super-3 number, since 3×211012112200021³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211012112199968 and 211012112200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012112200921) 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, 2954406 + ... + 20754583.

It is an arithmetic number, because the mean of its divisors is an integer number (14550444252900).

Almost surely, 2^{211012112200021} is an apocalyptic number.

It is an amenable number.

211012112200021 is a deficient number, since it is larger than the sum of its proper divisors (21794995846379).

211012112200021 is a wasteful number, since it uses less digits than its factorization.

211012112200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23718180.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211012112200021 its reverse (120002211210112), we get a palindrome (331014323410133).

The spelling of 211012112200021 in words is "two hundred eleven trillion, twelve billion, one hundred twelve million, two hundred thousand, twenty-one".