20112215152 has 10 divisors (see below), whose sum is σ = 38967416888. Its totient is φ = 10056107568.

The previous prime is 20112215147. The next prime is 20112215161. The reversal of 20112215152 is 25151221102.

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 as a sum of consecutive naturals, namely, 628506708 + ... + 628506739.

Almost surely, 2^20112215152 is an apocalyptic number.

It is an amenable number.

20112215152 is a deficient number, since it is larger than the sum of its proper divisors (18855201736).

20112215152 is a wasteful number, since it uses less digits than its factorization.

20112215152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257013455 (or 1257013449 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 20112215152 its reverse (25151221102), we get a palindrome (45263436254).

The spelling of 20112215152 in words is "twenty billion, one hundred twelve million, two hundred fifteen thousand, one hundred fifty-two".