101212012112 has 20 divisors (see below), whose sum is σ = 196592236116. Its totient is φ = 50478531840.

The previous prime is 101212012063. The next prime is 101212012117. The reversal of 101212012112 is 211210212101.

It can be written as a sum of positive squares in 2 ways, for example, as 59553569296 + 41658442816 = 244036^2 + 204104^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212012117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7960589 + ... + 7973292.

Almost surely, 2^101212012112 is an apocalyptic number.

It is an amenable number.

101212012112 is a deficient number, since it is larger than the sum of its proper divisors (95380224004).

101212012112 is a wasteful number, since it uses less digits than its factorization.

101212012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15934286 (or 15934280 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101212012112 its reverse (211210212101), we get a palindrome (312422224213).

The spelling of 101212012112 in words is "one hundred one billion, two hundred twelve million, twelve thousand, one hundred twelve".