12212032111 has 4 divisors (see below), whose sum is σ = 12359165112. Its totient is φ = 12064899112.

The previous prime is 12212032099. The next prime is 12212032123. The reversal of 12212032111 is 11123021221.

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

It is an interprime number because it is at equal distance from previous prime (12212032099) and next prime (12212032123).

It is a cyclic number.

It is not a de Polignac number, because 12212032111 - 2⁹ = 12212031599 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 (12212032181) 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, 73566376 + ... + 73566541.

It is an arithmetic number, because the mean of its divisors is an integer number (3089791278).

Almost surely, 2^12212032111 is an apocalyptic number.

12212032111 is a deficient number, since it is larger than the sum of its proper divisors (147133001).

12212032111 is an equidigital number, since it uses as much as digits as its factorization.

12212032111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147133000.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12212032111 its reverse (11123021221), we get a palindrome (23335053332).

The spelling of 12212032111 in words is "twelve billion, two hundred twelve million, thirty-two thousand, one hundred eleven".