90011211211201 has 4 divisors (see below), whose sum is σ = 102869955669952. Its totient is φ = 77152466752452.

The previous prime is 90011211211147. The next prime is 90011211211211. The reversal of 90011211211201 is 10211211211009.

It is a happy number.

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 not a de Polignac number, because 90011211211201 - 2³³ = 90002621276609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90011211211211) 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, 6429372229365 + ... + 6429372229378.

It is an arithmetic number, because the mean of its divisors is an integer number (25717488917488).

Almost surely, 2^{90011211211201} is an apocalyptic number.

It is an amenable number.

90011211211201 is a deficient number, since it is larger than the sum of its proper divisors (12858744458751).

90011211211201 is a wasteful number, since it uses less digits than its factorization.

90011211211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858744458750.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 90011211211201 in words is "ninety trillion, eleven billion, two hundred eleven million, two hundred eleven thousand, two hundred one".