20112202312 has 16 divisors (see below), whose sum is σ = 37712678400. Its totient is φ = 10055488080.

The previous prime is 20112202309. The next prime is 20112202321. The reversal of 20112202312 is 21320221102.

It is a happy number.

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, 82137 + ... + 216727.

It is an arithmetic number, because the mean of its divisors is an integer number (2357042400).

Almost surely, 2^20112202312 is an apocalyptic number.

It is an amenable number.

20112202312 is a deficient number, since it is larger than the sum of its proper divisors (17600476088).

20112202312 is a wasteful number, since it uses less digits than its factorization.

20112202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153276 (or 153272 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20112202312 its reverse (21320221102), we get a palindrome (41432423414).

The spelling of 20112202312 in words is "twenty billion, one hundred twelve million, two hundred two thousand, three hundred twelve".