99112200221 has 8 divisors (see below), whose sum is σ = 100005589824. Its totient is φ = 98219096640.

The previous prime is 99112200179. The next prime is 99112200241. The reversal of 99112200221 is 12200221199.

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

It is a cyclic number.

It is not a de Polignac number, because 99112200221 - 2³⁴ = 81932331037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99112200241) 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, 658016 + ... + 794486.

It is an arithmetic number, because the mean of its divisors is an integer number (12500698728).

Almost surely, 2^99112200221 is an apocalyptic number.

It is an amenable number.

99112200221 is a deficient number, since it is larger than the sum of its proper divisors (893389603).

99112200221 is a wasteful number, since it uses less digits than its factorization.

99112200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143011.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 99112200221 in words is "ninety-nine billion, one hundred twelve million, two hundred thousand, two hundred twenty-one".