22211221232131 has 16 divisors (see below), whose sum is σ = 22542526976256. Its totient is φ = 21880435500000.

The previous prime is 22211221232129. The next prime is 22211221232171. The reversal of 22211221232131 is 13123212211222.

It is a cyclic number.

It is not a de Polignac number, because 22211221232131 - 2¹ = 22211221232129 is a prime.

It is a super-2 number, since 2×22211221232131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22211221232096 and 22211221232105.

It is not an unprimeable number, because it can be changed into a prime (22211221232111) 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, 508814656 + ... + 508858306.

It is an arithmetic number, because the mean of its divisors is an integer number (1408907936016).

Almost surely, 2^{22211221232131} is an apocalyptic number.

22211221232131 is a deficient number, since it is larger than the sum of its proper divisors (331305744125).

22211221232131 is a wasteful number, since it uses less digits than its factorization.

22211221232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49434.

The product of its digits is 1152, while the sum is 25.

Adding to 22211221232131 its reverse (13123212211222), we get a palindrome (35334433443353).

The spelling of 22211221232131 in words is "twenty-two trillion, two hundred eleven billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred thirty-one".