22232212102121 has 12 divisors (see below), whose sum is σ = 25862057424900. Its totient is φ = 19056110764320.

The previous prime is 22232212102091. The next prime is 22232212102123. The reversal of 22232212102121 is 12120121223222.

It can be written as a sum of positive squares in 2 ways, for example, as 8153657522521 + 14078554579600 = 2855461^2 + 3752140^2 .

It is not a de Polignac number, because 22232212102121 - 2¹⁸ = 22232211839977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22232212102123) 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, 15704591 + ... + 17061611.

It is an arithmetic number, because the mean of its divisors is an integer number (2155171452075).

Almost surely, 2^{22232212102121} is an apocalyptic number.

It is an amenable number.

22232212102121 is a deficient number, since it is larger than the sum of its proper divisors (3629845322779).

22232212102121 is a wasteful number, since it uses less digits than its factorization.

22232212102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691384 (or 1691377 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 22232212102121 its reverse (12120121223222), we get a palindrome (34352333325343).

The spelling of 22232212102121 in words is "twenty-two trillion, two hundred thirty-two billion, two hundred twelve million, one hundred two thousand, one hundred twenty-one".