99901001111001 has 16 divisors (see below), whose sum is σ = 133466806461120. Its totient is φ = 66467938996800.

The previous prime is 99901001110991. The next prime is 99901001111011. The reversal of 99901001111001 is 10011110010999.

It is an interprime number because it is at equal distance from previous prime (99901001110991) and next prime (99901001111011).

It is not a de Polignac number, because 99901001111001 - 2¹³ = 99901001102809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99901001111011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54083526 + ... + 55900176.

It is an arithmetic number, because the mean of its divisors is an integer number (8341675403820).

Almost surely, 2^{99901001111001} is an apocalyptic number.

It is an amenable number.

99901001111001 is a deficient number, since it is larger than the sum of its proper divisors (33565805350119).

99901001111001 is a wasteful number, since it uses less digits than its factorization.

99901001111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853176.

The product of its (nonzero) digits is 729, while the sum is 33.

The spelling of 99901001111001 in words is "ninety-nine trillion, nine hundred one billion, one million, one hundred eleven thousand, one".