99901110021111 has 32 divisors (see below), whose sum is σ = 176498855531520. Its totient is φ = 54604333425312.

The previous prime is 99901110021079. The next prime is 99901110021173. The reversal of 99901110021111 is 11112001110999.

It is not a de Polignac number, because 99901110021111 - 2⁵ = 99901110021079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99901110021191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11490806560 + ... + 11490815253.

It is an arithmetic number, because the mean of its divisors is an integer number (5515589235360).

Almost surely, 2^{99901110021111} is an apocalyptic number.

99901110021111 is a deficient number, since it is larger than the sum of its proper divisors (76597745510409).

99901110021111 is a wasteful number, since it uses less digits than its factorization.

99901110021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22981621852 (or 22981621846 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 36.

The spelling of 99901110021111 in words is "ninety-nine trillion, nine hundred one billion, one hundred ten million, twenty-one thousand, one hundred eleven".