99121100221201 has 8 divisors (see below), whose sum is σ = 100329033367584. Its totient is φ = 97913493337440.

The previous prime is 99121100221183. The next prime is 99121100221211. The reversal of 99121100221201 is 10212200112199.

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 99121100221201 - 2⁹ = 99121100220689 is a prime.

It is a super-2 number, since 2×99121100221201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99121100221211) 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, 80954311 + ... + 82169596.

It is an arithmetic number, because the mean of its divisors is an integer number (12541129170948).

Almost surely, 2^{99121100221201} is an apocalyptic number.

It is an amenable number.

99121100221201 is a deficient number, since it is larger than the sum of its proper divisors (1207933146383).

99121100221201 is a wasteful number, since it uses less digits than its factorization.

99121100221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163131311.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 99121100221201 in words is "ninety-nine trillion, one hundred twenty-one billion, one hundred million, two hundred twenty-one thousand, two hundred one".