22212403231 has 8 divisors (see below), whose sum is σ = 23512729680. Its totient is φ = 20947702272.

The previous prime is 22212403211. The next prime is 22212403271. The reversal of 22212403231 is 13230421222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212403231 - 2³¹ = 20064919583 is a prime.

It is a super-2 number, since 2×22212403231² (a number of 21 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 (22212403211) 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, 8905090 + ... + 8907583.

It is an arithmetic number, because the mean of its divisors is an integer number (2939091210).

Almost surely, 2^22212403231 is an apocalyptic number.

22212403231 is a deficient number, since it is larger than the sum of its proper divisors (1300326449).

22212403231 is a wasteful number, since it uses less digits than its factorization.

22212403231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17812745.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22212403231 its reverse (13230421222), we get a palindrome (35442824453).

The spelling of 22212403231 in words is "twenty-two billion, two hundred twelve million, four hundred three thousand, two hundred thirty-one".