22121101422231 has 16 divisors (see below), whose sum is σ = 33708822201600. Its totient is φ = 12640450442688.

The previous prime is 22121101422229. The next prime is 22121101422253. The reversal of 22121101422231 is 13222410112122.

It is not a de Polignac number, because 22121101422231 - 2¹ = 22121101422229 is a prime.

It is a super-2 number, since 2×22121101422231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121101421231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5929846 + ... + 8910963.

It is an arithmetic number, because the mean of its divisors is an integer number (2106801387600).

Almost surely, 2^{22121101422231} is an apocalyptic number.

22121101422231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22121101422231 is a deficient number, since it is larger than the sum of its proper divisors (11587720779369).

22121101422231 is a wasteful number, since it uses less digits than its factorization.

22121101422231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911798.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 22121101422231 its reverse (13222410112122), we get a palindrome (35343511534353).

The spelling of 22121101422231 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred one million, four hundred twenty-two thousand, two hundred thirty-one".