91002210011 has 8 divisors (see below), whose sum is σ = 92560120320. Its totient is φ = 89454449448.

The previous prime is 91002210007. The next prime is 91002210097. The reversal of 91002210011 is 11001220019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91002210011 - 2² = 91002210007 is a prime.

It is a super-2 number, since 2×91002210011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91002210811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2519351 + ... + 2555216.

It is an arithmetic number, because the mean of its divisors is an integer number (11570015040).

Almost surely, 2^91002210011 is an apocalyptic number.

91002210011 is a deficient number, since it is larger than the sum of its proper divisors (1557910309).

91002210011 is a wasteful number, since it uses less digits than its factorization.

91002210011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074873.

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

The spelling of 91002210011 in words is "ninety-one billion, two million, two hundred ten thousand, eleven".