22111012013231 has 8 divisors (see below), whose sum is σ = 22197415945200. Its totient is φ = 22024763625600.

The previous prime is 22111012013221. The next prime is 22111012013257. The reversal of 22111012013231 is 13231021011122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111012013231 is a prime.

It is a super-2 number, since 2×22111012013231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111012013221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38601221 + ... + 39169838.

It is an arithmetic number, because the mean of its divisors is an integer number (2774676993150).

Almost surely, 2^{22111012013231} is an apocalyptic number.

22111012013231 is a deficient number, since it is larger than the sum of its proper divisors (86403931969).

22111012013231 is an equidigital number, since it uses as much as digits as its factorization.

22111012013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77772169.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 22111012013231 its reverse (13231021011122), we get a palindrome (35342033024353).

The spelling of 22111012013231 in words is "twenty-two trillion, one hundred eleven billion, twelve million, thirteen thousand, two hundred thirty-one".