2212022222121 has 16 divisors (see below), whose sum is σ = 3053185574400. Its totient is φ = 1422840857088.

The previous prime is 2212022222101. The next prime is 2212022222167. The reversal of 2212022222121 is 1212222202122.

It is not a de Polignac number, because 2212022222121 - 2³⁰ = 2210948480297 is a prime.

It is a super-2 number, since 2×2212022222121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2212022222101) 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, 8709256 + ... + 8959641.

It is an arithmetic number, because the mean of its divisors is an integer number (190824098400).

Almost surely, 2^{2212022222121} is an apocalyptic number.

It is an amenable number.

2212022222121 is a deficient number, since it is larger than the sum of its proper divisors (841163352279).

2212022222121 is a wasteful number, since it uses less digits than its factorization.

2212022222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670368.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2212022222121 its reverse (1212222202122), we get a palindrome (3424244424243).

The spelling of 2212022222121 in words is "two trillion, two hundred twelve billion, twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".