99911201 has 8 divisors (see below), whose sum is σ = 109627560. Its totient is φ = 90484992.

The previous prime is 99911197. The next prime is 99911263. The reversal of 99911201 is 10211999.

It can be written as a sum of positive squares in 4 ways, for example, as 390625 + 99520576 = 625^2 + 9976^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99911201 - 2² = 99911197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99911501) 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, 71816 + ... + 73193.

It is an arithmetic number, because the mean of its divisors is an integer number (13703445).

Almost surely, 2^99911201 is an apocalyptic number.

It is an amenable number.

99911201 is a deficient number, since it is larger than the sum of its proper divisors (9716359).

99911201 is a wasteful number, since it uses less digits than its factorization.

99911201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145075.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 99911201 is about 9995.5590639043. The cubic root of 99911201 is about 464.0214531921.

The spelling of 99911201 in words is "ninety-nine million, nine hundred eleven thousand, two hundred one".