20201212112 has 10 divisors (see below), whose sum is σ = 39139848498. Its totient is φ = 10100606048.

The previous prime is 20201212099. The next prime is 20201212117. The reversal of 20201212112 is 21121210202.

It can be written as a sum of positive squares in only one way, i.e., 11820908176 + 8380303936 = 108724^2 + 91544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631287863 + ... + 631287894.

Almost surely, 2^20201212112 is an apocalyptic number.

It is an amenable number.

20201212112 is a deficient number, since it is larger than the sum of its proper divisors (18938636386).

20201212112 is a wasteful number, since it uses less digits than its factorization.

20201212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262575765 (or 1262575759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20201212112 its reverse (21121210202), we get a palindrome (41322422314).

The spelling of 20201212112 in words is "twenty billion, two hundred one million, two hundred twelve thousand, one hundred twelve".