99211012 has 6 divisors (see below), whose sum is σ = 173619278. Its totient is φ = 49605504.

The previous prime is 99210977. The next prime is 99211033. The reversal of 99211012 is 21011299.

It can be written as a sum of positive squares in only one way, i.e., 66194496 + 33016516 = 8136^2 + 5746^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12401373 + ... + 12401380.

Almost surely, 2^99211012 is an apocalyptic number.

It is an amenable number.

99211012 is a deficient number, since it is larger than the sum of its proper divisors (74408266).

99211012 is a wasteful number, since it uses less digits than its factorization.

99211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24802757 (or 24802755 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 99211012 is about 9960.4724787532. The cubic root of 99211012 is about 462.9349394748.

The spelling of 99211012 in words is "ninety-nine million, two hundred eleven thousand, twelve".