999112210 has 16 divisors (see below), whose sum is σ = 1821168000. Its totient is φ = 394585776.

The previous prime is 999112193. The next prime is 999112211. The reversal of 999112210 is 12211999.

It is not an unprimeable number, because it can be changed into a prime (999112211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631560 + ... + 633139.

It is an arithmetic number, because the mean of its divisors is an integer number (113823000).

Almost surely, 2^999112210 is an apocalyptic number.

999112210 is a deficient number, since it is larger than the sum of its proper divisors (822055790).

999112210 is a wasteful number, since it uses less digits than its factorization.

999112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264785.

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

The square root of 999112210 is about 31608.7362923607. The cubic root of 999112210 is about 999.7039823822.

It can be divided in two parts, 9991 and 12210, that added together give a square (22201 = 149²).

The spelling of 999112210 in words is "nine hundred ninety-nine million, one hundred twelve thousand, two hundred ten".