99901021111001 has 8 divisors (see below), whose sum is σ = 110061971054208. Its totient is φ = 89919910990000.

The previous prime is 99901021110953. The next prime is 99901021111093. The reversal of 99901021111001 is 10011112010999.

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 99901021111001 - 2⁴⁶ = 29532276933337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99901021111501) 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, 44959954385 + ... + 44959956606.

It is an arithmetic number, because the mean of its divisors is an integer number (13757746381776).

Almost surely, 2^{99901021111001} is an apocalyptic number.

It is an amenable number.

99901021111001 is a deficient number, since it is larger than the sum of its proper divisors (10160949943207).

99901021111001 is a wasteful number, since it uses less digits than its factorization.

99901021111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89919911103.

The product of its (nonzero) digits is 1458, while the sum is 35.

The spelling of 99901021111001 in words is "ninety-nine trillion, nine hundred one billion, twenty-one million, one hundred eleven thousand, one".