10902191099 has 4 divisors (see below), whose sum is σ = 10902706320. Its totient is φ = 10901675880.

The previous prime is 10902191093. The next prime is 10902191129. The reversal of 10902191099 is 99019120901.

It is a happy number.

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 10902191099 - 2²⁴ = 10885413883 is a prime.

It is a super-2 number, since 2×10902191099² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10902191093) 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, 224447 + ... + 268664.

It is an arithmetic number, because the mean of its divisors is an integer number (2725676580).

Almost surely, 2^10902191099 is an apocalyptic number.

10902191099 is a deficient number, since it is larger than the sum of its proper divisors (515221).

10902191099 is an equidigital number, since it uses as much as digits as its factorization.

10902191099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515220.

The product of its (nonzero) digits is 13122, while the sum is 41.

The spelling of 10902191099 in words is "ten billion, nine hundred two million, one hundred ninety-one thousand, ninety-nine".