22212401211231 has 64 divisors (see below), whose sum is σ = 37475830087680. Its totient is φ = 11367006877440.

The previous prime is 22212401211197. The next prime is 22212401211251. The reversal of 22212401211231 is 13211210421222.

It is not a de Polignac number, because 22212401211231 - 2⁷ = 22212401211103 is a prime.

It is a super-2 number, since 2×22212401211231² (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 (22212401211251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13077990 + ... + 14678508.

It is an arithmetic number, because the mean of its divisors is an integer number (585559845120).

Almost surely, 2^{22212401211231} is an apocalyptic number.

22212401211231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22212401211231 is a deficient number, since it is larger than the sum of its proper divisors (15263428876449).

22212401211231 is a wasteful number, since it uses less digits than its factorization.

22212401211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601436.

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

Adding to 22212401211231 its reverse (13211210421222), we get a palindrome (35423611632453).

The spelling of 22212401211231 in words is "twenty-two trillion, two hundred twelve billion, four hundred one million, two hundred eleven thousand, two hundred thirty-one".