2022111121221 has 12 divisors (see below), whose sum is σ = 3092640538572. Its totient is φ = 1268775605376.

The previous prime is 2022111121181. The next prime is 2022111121241. The reversal of 2022111121221 is 1221211112202.

2022111121221 is a `hidden beast` number, since 202 + 211 + 11 + 21 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1502306170596 + 519804950625 = 1225686^2 + 720975^2 .

It is not a de Polignac number, because 2022111121221 - 2¹⁸ = 2022110859077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022111121194 and 2022111121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022111121241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6608206126 + ... + 6608206431.

It is an arithmetic number, because the mean of its divisors is an integer number (257720044881).

Almost surely, 2^{2022111121221} is an apocalyptic number.

It is an amenable number.

2022111121221 is a deficient number, since it is larger than the sum of its proper divisors (1070529417351).

2022111121221 is a wasteful number, since it uses less digits than its factorization.

2022111121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13216412580 (or 13216412577 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2022111121221 its reverse (1221211112202), we get a palindrome (3243322233423).

The spelling of 2022111121221 in words is "two trillion, twenty-two billion, one hundred eleven million, one hundred twenty-one thousand, two hundred twenty-one".