22012102202121 has 32 divisors (see below), whose sum is σ = 33146459840000. Its totient is φ = 14433582119040.

The previous prime is 22012102202087. The next prime is 22012102202141. The reversal of 22012102202121 is 12120220121022.

It is a happy number.

22012102202121 is a `hidden beast` number, since 2 + 20 + 1 + 210 + 220 + 212 + 1 = 666.

It is not a de Polignac number, because 22012102202121 - 2⁷ = 22012102201993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22012102202094 and 22012102202103.

It is not an unprimeable number, because it can be changed into a prime (22012102202141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42563325 + ... + 43077381.

It is an arithmetic number, because the mean of its divisors is an integer number (1035826870000).

Almost surely, 2^{22012102202121} is an apocalyptic number.

It is an amenable number.

22012102202121 is a deficient number, since it is larger than the sum of its proper divisors (11134357637879).

22012102202121 is a wasteful number, since it uses less digits than its factorization.

22012102202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540126 (or 540120 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22012102202121 its reverse (12120220121022), we get a palindrome (34132322323143).

The spelling of 22012102202121 in words is "twenty-two trillion, twelve billion, one hundred two million, two hundred two thousand, one hundred twenty-one".