2112200122021 has 8 divisors (see below), whose sum is σ = 2304284868288. Its totient is φ = 1920126468000.

The previous prime is 2112200122001. The next prime is 2112200122033. The reversal of 2112200122021 is 1202210022112.

It is a happy number.

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 2112200122021 - 2⁵ = 2112200121989 is a prime.

It is a super-2 number, since 2×2112200122021² (a number of 25 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 = 2112200121986 and 2112200122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200122001) 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, 2372385 + ... + 3138886.

It is an arithmetic number, because the mean of its divisors is an integer number (288035608536).

Almost surely, 2^{2112200122021} is an apocalyptic number.

It is an amenable number.

2112200122021 is a deficient number, since it is larger than the sum of its proper divisors (192084746267).

2112200122021 is a wasteful number, since it uses less digits than its factorization.

2112200122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546123.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2112200122021 its reverse (1202210022112), we get a palindrome (3314410144133).

Subtracting from 2112200122021 its reverse (1202210022112), we obtain a palindrome (909990099909).

The spelling of 2112200122021 in words is "two trillion, one hundred twelve billion, two hundred million, one hundred twenty-two thousand, twenty-one".