22122001111121 has 4 divisors (see below), whose sum is σ = 22124554738752. Its totient is φ = 22119447483492.

The previous prime is 22122001111079. The next prime is 22122001111157. The reversal of 22122001111121 is 12111110022122.

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 22122001111121 - 2⁴² = 17723954600017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22122001111121.

It is not an unprimeable number, because it can be changed into a prime (22125001111121) 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, 1276800821 + ... + 1276818146.

It is an arithmetic number, because the mean of its divisors is an integer number (5531138684688).

Almost surely, 2^{22122001111121} is an apocalyptic number.

It is an amenable number.

22122001111121 is a deficient number, since it is larger than the sum of its proper divisors (2553627631).

22122001111121 is an equidigital number, since it uses as much as digits as its factorization.

22122001111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553627630.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22122001111121 its reverse (12111110022122), we get a palindrome (34233111133243).

The spelling of 22122001111121 in words is "twenty-two trillion, one hundred twenty-two billion, one million, one hundred eleven thousand, one hundred twenty-one".