22331212210121 has 16 divisors (see below), whose sum is σ = 23465404546560. Its totient is φ = 21222499697280.

The previous prime is 22331212210079. The next prime is 22331212210129. The reversal of 22331212210121 is 12101221213322.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22331212210121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22331212210129) 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, 9702425 + ... + 11781318.

It is an arithmetic number, because the mean of its divisors is an integer number (1466587784160).

Almost surely, 2^{22331212210121} is an apocalyptic number.

It is an amenable number.

22331212210121 is a deficient number, since it is larger than the sum of its proper divisors (1134192336439).

22331212210121 is a wasteful number, since it uses less digits than its factorization.

22331212210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21484336.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 22331212210121 its reverse (12101221213322), we get a palindrome (34432433423443).

The spelling of 22331212210121 in words is "twenty-two trillion, three hundred thirty-one billion, two hundred twelve million, two hundred ten thousand, one hundred twenty-one".