90011201201 has 4 divisors (see below), whose sum is σ = 93924731712. Its totient is φ = 86097670692.

The previous prime is 90011201183. The next prime is 90011201213. The reversal of 90011201201 is 10210211009.

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 a de Polignac number, because none of the positive numbers 2^k-90011201201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 90011201201.

It is not an unprimeable number, because it can be changed into a prime (90011201801) 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, 1956765221 + ... + 1956765266.

It is an arithmetic number, because the mean of its divisors is an integer number (23481182928).

Almost surely, 2^90011201201 is an apocalyptic number.

It is an amenable number.

90011201201 is a deficient number, since it is larger than the sum of its proper divisors (3913530511).

90011201201 is a wasteful number, since it uses less digits than its factorization.

90011201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913530510.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 90011201201 in words is "ninety billion, eleven million, two hundred one thousand, two hundred one".