999002100112 has 10 divisors (see below), whose sum is σ = 1935566568998. Its totient is φ = 499501050048.

The previous prime is 999002100079. The next prime is 999002100113. The reversal of 999002100112 is 211001200999.

It can be written as a sum of positive squares in only one way, i.e., 841872311296 + 157129788816 = 917536^2 + 396396^2 .

It is not an unprimeable number, because it can be changed into a prime (999002100113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31218815613 + ... + 31218815644.

Almost surely, 2^999002100112 is an apocalyptic number.

It is an amenable number.

999002100112 is a deficient number, since it is larger than the sum of its proper divisors (936564468886).

999002100112 is a wasteful number, since it uses less digits than its factorization.

999002100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62437631265 (or 62437631259 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 999002100112 in words is "nine hundred ninety-nine billion, two million, one hundred thousand, one hundred twelve".