2202122111121 has 12 divisors (see below), whose sum is σ = 3183100585860. Its totient is φ = 1467039467520.

The previous prime is 2202122111083. The next prime is 2202122111201. The reversal of 2202122111121 is 1211112212022.

2202122111121 is a `hidden beast` number, since 220 + 212 + 2 + 111 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207629680896 + 1994492430225 = 455664^2 + 1412265^2 .

It is not a de Polignac number, because 2202122111121 - 2²¹ = 2202120013969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202122111094 and 2202122111103.

It is not an unprimeable number, because it can be changed into a prime (2202122111221) 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, 86814940 + ... + 86840301.

It is an arithmetic number, because the mean of its divisors is an integer number (265258382155).

Almost surely, 2^{2202122111121} is an apocalyptic number.

It is an amenable number.

2202122111121 is a deficient number, since it is larger than the sum of its proper divisors (980978474739).

2202122111121 is a wasteful number, since it uses less digits than its factorization.

2202122111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173656656 (or 173656653 counting only the distinct ones).

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

Adding to 2202122111121 its reverse (1211112212022), we get a palindrome (3413234323143).

The spelling of 2202122111121 in words is "two trillion, two hundred two billion, one hundred twenty-two million, one hundred eleven thousand, one hundred twenty-one".