20022202312 has 64 divisors (see below), whose sum is σ = 43558744320. Its totient is φ = 8450500608.

The previous prime is 20022202267. The next prime is 20022202349. The reversal of 20022202312 is 21320222002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2968608 + ... + 2975344.

It is an arithmetic number, because the mean of its divisors is an integer number (680605380).

Almost surely, 2^20022202312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20022202312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21779372160).

20022202312 is an abundant number, since it is smaller than the sum of its proper divisors (23536542008).

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

20022202312 is a wasteful number, since it uses less digits than its factorization.

20022202312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7550 (or 7546 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20022202312 its reverse (21320222002), we get a palindrome (41342424314).

The spelling of 20022202312 in words is "twenty billion, twenty-two million, two hundred two thousand, three hundred twelve".