99112021221201 has 4 divisors (see below), whose sum is σ = 132149361628272. Its totient is φ = 66074680814132.

The previous prime is 99112021221173. The next prime is 99112021221211. The reversal of 99112021221201 is 10212212021199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99112021221201 - 2²¹ = 99112019124049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99112021221211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16518670203531 + ... + 16518670203536.

It is an arithmetic number, because the mean of its divisors is an integer number (33037340407068).

Almost surely, 2^{99112021221201} is an apocalyptic number.

It is an amenable number.

99112021221201 is a deficient number, since it is larger than the sum of its proper divisors (33037340407071).

99112021221201 is a wasteful number, since it uses less digits than its factorization.

99112021221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33037340407070.

The product of its (nonzero) digits is 2592, while the sum is 33.

The spelling of 99112021221201 in words is "ninety-nine trillion, one hundred twelve billion, twenty-one million, two hundred twenty-one thousand, two hundred one".