20222312 has 16 divisors (see below), whose sum is σ = 41364000. Its totient is φ = 9191920.

The previous prime is 20222297. The next prime is 20222329. The reversal of 20222312 is 21322202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114812 + ... + 114987.

It is an arithmetic number, because the mean of its divisors is an integer number (2585250).

Almost surely, 2^20222312 is an apocalyptic number.

20222312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20222312 is an abundant number, since it is smaller than the sum of its proper divisors (21141688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222312 is a wasteful number, since it uses less digits than its factorization.

20222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229816 (or 229812 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20222312 is about 4496.9225032237. The cubic root of 20222312 is about 272.4438040278.

Adding to 20222312 its reverse (21322202), we get a palindrome (41544514).

It can be divided in two parts, 2022 and 2312, that added together give a palindrome (4334).

The spelling of 20222312 in words is "twenty million, two hundred twenty-two thousand, three hundred twelve".