22122022112021 has 16 divisors (see below), whose sum is σ = 24030908564208. Its totient is φ = 20243446387200.

The previous prime is 22122022112011. The next prime is 22122022112053. The reversal of 22122022112021 is 12021122022122.

It can be written as a sum of positive squares in 8 ways, for example, as 17733876967921 + 4388145144100 = 4211161^2 + 2094790^2 .

It is a cyclic number.

It is not a de Polignac number, because 22122022112021 - 2³⁰ = 22120948370197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22122022111984 and 22122022112002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122022112011) 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, 14083160 + ... + 15574961.

It is an arithmetic number, because the mean of its divisors is an integer number (1501931785263).

Almost surely, 2^{22122022112021} is an apocalyptic number.

It is an amenable number.

22122022112021 is a deficient number, since it is larger than the sum of its proper divisors (1908886452187).

22122022112021 is a wasteful number, since it uses less digits than its factorization.

22122022112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29658632.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22122022112021 its reverse (12021122022122), we get a palindrome (34143144134143).

The spelling of 22122022112021 in words is "twenty-two trillion, one hundred twenty-two billion, twenty-two million, one hundred twelve thousand, twenty-one".