22122200112121 has 4 divisors (see below), whose sum is σ = 22122215363200. Its totient is φ = 22122184861044.

The previous prime is 22122200112119. The next prime is 22122200112157. The reversal of 22122200112121 is 12121100222122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22122200112121 - 2¹ = 22122200112119 is a prime.

It is a super-2 number, since 2×22122200112121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122200112161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5190561 + ... + 8437198.

It is an arithmetic number, because the mean of its divisors is an integer number (5530553840800).

Almost surely, 2^{22122200112121} is an apocalyptic number.

It is an amenable number.

22122200112121 is a deficient number, since it is larger than the sum of its proper divisors (15251079).

22122200112121 is a wasteful number, since it uses less digits than its factorization.

22122200112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15251078.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22122200112121 its reverse (12121100222122), we get a palindrome (34243300334243).

The spelling of 22122200112121 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred million, one hundred twelve thousand, one hundred twenty-one".