12220189727 has 4 divisors (see below), whose sum is σ = 12220499256. Its totient is φ = 12219880200.

The previous prime is 12220189673. The next prime is 12220189753. The reversal of 12220189727 is 72798102221.

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 12220189727 - 2¹² = 12220185631 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 (12220180727) 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, 85088 + ... + 177989.

It is an arithmetic number, because the mean of its divisors is an integer number (3055124814).

Almost surely, 2^12220189727 is an apocalyptic number.

12220189727 is a deficient number, since it is larger than the sum of its proper divisors (309529).

12220189727 is an equidigital number, since it uses as much as digits as its factorization.

12220189727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309528.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 12220189727 in words is "twelve billion, two hundred twenty million, one hundred eighty-nine thousand, seven hundred twenty-seven".