22222122110121 has 4 divisors (see below), whose sum is σ = 29629496146832. Its totient is φ = 14814748073412.

The previous prime is 22222122110119. The next prime is 22222122110147. The reversal of 22222122110121 is 12101122122222.

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 not a de Polignac number, because 22222122110121 - 2¹ = 22222122110119 is a prime.

It is a super-2 number, since 2×22222122110121² (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 (22222122110191) 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, 3703687018351 + ... + 3703687018356.

It is an arithmetic number, because the mean of its divisors is an integer number (7407374036708).

Almost surely, 2^{22222122110121} is an apocalyptic number.

It is an amenable number.

22222122110121 is a deficient number, since it is larger than the sum of its proper divisors (7407374036711).

22222122110121 is an equidigital number, since it uses as much as digits as its factorization.

22222122110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407374036710.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22222122110121 its reverse (12101122122222), we get a palindrome (34323244232343).

The spelling of 22222122110121 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred ten thousand, one hundred twenty-one".