211200021112021 has 8 divisors (see below), whose sum is σ = 211776096599424. Its totient is φ = 210623948878560.

The previous prime is 211200021112007. The next prime is 211200021112027. The reversal of 211200021112021 is 120211120002112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211200021112021 - 2³⁹ = 210650265298133 is a prime.

It is a super-2 number, since 2×211200021112021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211200021111986 and 211200021112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200021112027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190313526 + ... + 191420056.

It is an arithmetic number, because the mean of its divisors is an integer number (26472012074928).

Almost surely, 2^{211200021112021} is an apocalyptic number.

It is an amenable number.

211200021112021 is a deficient number, since it is larger than the sum of its proper divisors (576075487403).

211200021112021 is a wasteful number, since it uses less digits than its factorization.

211200021112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626971.

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

Adding to 211200021112021 its reverse (120211120002112), we get a palindrome (331411141114133).

The spelling of 211200021112021 in words is "two hundred eleven trillion, two hundred billion, twenty-one million, one hundred twelve thousand, twenty-one".