22203212031 has 48 divisors (see below), whose sum is σ = 43060792320. Its totient is φ = 10646890560.

The previous prime is 22203212027. The next prime is 22203212047. The reversal of 22203212031 is 13021230222.

It is not a de Polignac number, because 22203212031 - 2² = 22203212027 is a prime.

It is a super-2 number, since 2×22203212031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22203211995 and 22203212013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203212011) 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 47 ways as a sum of consecutive naturals, for example, 1223271 + ... + 1241288.

It is an arithmetic number, because the mean of its divisors is an integer number (897099840).

Almost surely, 2^22203212031 is an apocalyptic number.

22203212031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22203212031 is a deficient number, since it is larger than the sum of its proper divisors (20857580289).

22203212031 is a wasteful number, since it uses less digits than its factorization.

22203212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464596 (or 2464593 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22203212031 its reverse (13021230222), we get a palindrome (35224442253).

The spelling of 22203212031 in words is "twenty-two billion, two hundred three million, two hundred twelve thousand, thirty-one".