20202222312 has 80 divisors (see below), whose sum is σ = 57113955360. Its totient is φ = 6671115936.

The previous prime is 20202222269. The next prime is 20202222329. The reversal of 20202222312 is 21322220202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 76348 + ... + 215019.

It is an arithmetic number, because the mean of its divisors is an integer number (713924442).

Almost surely, 2^20202222312 is an apocalyptic number.

It is an amenable number.

20202222312 is an abundant number, since it is smaller than the sum of its proper divisors (36911733048).

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

20202222312 is a wasteful number, since it uses less digits than its factorization.

20202222312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291492 (or 291479 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20202222312 its reverse (21322220202), we get a palindrome (41524442514).

The spelling of 20202222312 in words is "twenty billion, two hundred two million, two hundred twenty-two thousand, three hundred twelve".