11212002111 has 4 divisors (see below), whose sum is σ = 14949336152. Its totient is φ = 7474668072.

The previous prime is 11212002089. The next prime is 11212002157. The reversal of 11212002111 is 11120021211.

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

It is not a de Polignac number, because 11212002111 - 2²⁹ = 10675131199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212002611) 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, 1868667016 + ... + 1868667021.

It is an arithmetic number, because the mean of its divisors is an integer number (3737334038).

Almost surely, 2^11212002111 is an apocalyptic number.

11212002111 is a deficient number, since it is larger than the sum of its proper divisors (3737334041).

11212002111 is an equidigital number, since it uses as much as digits as its factorization.

11212002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737334040.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11212002111 its reverse (11120021211), we get a palindrome (22332023322).

The spelling of 11212002111 in words is "eleven billion, two hundred twelve million, two thousand, one hundred eleven".