12209011111 has 16 divisors (see below), whose sum is σ = 13391740800. Its totient is φ = 11038528800.

The previous prime is 12209011099. The next prime is 12209011121. The reversal of 12209011111 is 11111090221.

It is a cyclic number.

It is not a de Polignac number, because 12209011111 - 2⁹ = 12209010599 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 (12209011121) 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, 2947680 + ... + 2951818.

It is an arithmetic number, because the mean of its divisors is an integer number (836983800).

Almost surely, 2^12209011111 is an apocalyptic number.

12209011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12209011111 is a deficient number, since it is larger than the sum of its proper divisors (1182729689).

12209011111 is a wasteful number, since it uses less digits than its factorization.

12209011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5550.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 12209011111 in words is "twelve billion, two hundred nine million, eleven thousand, one hundred eleven".