11212110099 has 16 divisors (see below), whose sum is σ = 16615181440. Its totient is φ = 7472648520.

The previous prime is 11212110097. The next prime is 11212110103. The reversal of 11212110099 is 99001121211.

It is not a de Polignac number, because 11212110099 - 2¹ = 11212110097 is a prime.

It is a super-2 number, since 2×11212110099² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212110097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43404 + ... + 155910.

It is an arithmetic number, because the mean of its divisors is an integer number (1038448840).

Almost surely, 2^11212110099 is an apocalyptic number.

11212110099 is a deficient number, since it is larger than the sum of its proper divisors (5403071341).

11212110099 is a wasteful number, since it uses less digits than its factorization.

11212110099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116207 (or 116201 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 11212110099 in words is "eleven billion, two hundred twelve million, one hundred ten thousand, ninety-nine".