90120011211 has 40 divisors (see below), whose sum is σ = 140575716864. Its totient is φ = 57427421040.

The previous prime is 90120011207. The next prime is 90120011249. The reversal of 90120011211 is 11211002109.

It is a happy number.

It is not a de Polignac number, because 90120011211 - 2² = 90120011207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90120011251) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2754016 + ... + 2786546.

Almost surely, 2^90120011211 is an apocalyptic number.

90120011211 is a deficient number, since it is larger than the sum of its proper divisors (50455705653).

90120011211 is a wasteful number, since it uses less digits than its factorization.

90120011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34053 (or 34044 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 90120011211 in words is "ninety billion, one hundred twenty million, eleven thousand, two hundred eleven".