99921144022201 has 4 divisors (see below), whose sum is σ = 99926394482304. Its totient is φ = 99915893562100.

The previous prime is 99921144022187. The next prime is 99921144022211. The reversal of 99921144022201 is 10222044112999.

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 99921144022201 - 2¹¹ = 99921144020153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99921144022211) 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, 2625201505 + ... + 2625239566.

It is an arithmetic number, because the mean of its divisors is an integer number (24981598620576).

Almost surely, 2^{99921144022201} is an apocalyptic number.

It is an amenable number.

99921144022201 is a deficient number, since it is larger than the sum of its proper divisors (5250460103).

99921144022201 is a wasteful number, since it uses less digits than its factorization.

99921144022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250460102.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 99921144022201 in words is "ninety-nine trillion, nine hundred twenty-one billion, one hundred forty-four million, twenty-two thousand, two hundred one".