20122012312 has 16 divisors (see below), whose sum is σ = 37734336000. Its totient is φ = 10059522720.

The previous prime is 20122012303. The next prime is 20122012373. The reversal of 20122012312 is 21321022102.

It is a happy number.

It is a congruent 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, 126687 + ... + 237262.

It is an arithmetic number, because the mean of its divisors is an integer number (2358396000).

Almost surely, 2^20122012312 is an apocalyptic number.

It is an amenable number.

20122012312 is a deficient number, since it is larger than the sum of its proper divisors (17612323688).

20122012312 is a wasteful number, since it uses less digits than its factorization.

20122012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370866 (or 370862 counting only the distinct ones).

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

Adding to 20122012312 its reverse (21321022102), we get a palindrome (41443034414).

The spelling of 20122012312 in words is "twenty billion, one hundred twenty-two million, twelve thousand, three hundred twelve".