91002200011 has 4 divisors (see below), whose sum is σ = 91004806024. Its totient is φ = 90999594000.

The previous prime is 91002199999. The next prime is 91002200053. The reversal of 91002200011 is 11000220019.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91002200011 - 2³⁵ = 56642461643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91002200911) 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, 1249905 + ... + 1320706.

It is an arithmetic number, because the mean of its divisors is an integer number (22751201506).

Almost surely, 2^91002200011 is an apocalyptic number.

91002200011 is a deficient number, since it is larger than the sum of its proper divisors (2606013).

91002200011 is a wasteful number, since it uses less digits than its factorization.

91002200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606012.

The product of its (nonzero) digits is 36, while the sum is 16.

The spelling of 91002200011 in words is "ninety-one billion, two million, two hundred thousand, eleven".