999902202212 has 6 divisors (see below), whose sum is σ = 1749828853878. Its totient is φ = 499951101104.

The previous prime is 999902202199. The next prime is 999902202253. The reversal of 999902202212 is 212202209999.

It can be written as a sum of positive squares in only one way, i.e., 990375270976 + 9526931236 = 995176^2 + 97606^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124987775273 + ... + 124987775280.

It is an arithmetic number, because the mean of its divisors is an integer number (291638142313).

Almost surely, 2^999902202212 is an apocalyptic number.

It is an amenable number.

999902202212 is a deficient number, since it is larger than the sum of its proper divisors (749926651666).

999902202212 is a wasteful number, since it uses less digits than its factorization.

999902202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249975550557 (or 249975550555 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 47.

The spelling of 999902202212 in words is "nine hundred ninety-nine billion, nine hundred two million, two hundred two thousand, two hundred twelve".