12213874477 has 16 divisors (see below), whose sum is σ = 14166001152. Its totient is φ = 10313896320.

The previous prime is 12213874469. The next prime is 12213874489. The reversal of 12213874477 is 77447831221.

It is a happy number.

It is not a de Polignac number, because 12213874477 - 2³ = 12213874469 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 (12213874427) 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, 452403 + ... + 478639.

It is an arithmetic number, because the mean of its divisors is an integer number (885375072).

Almost surely, 2^12213874477 is an apocalyptic number.

It is an amenable number.

12213874477 is a deficient number, since it is larger than the sum of its proper divisors (1952126675).

12213874477 is an equidigital number, since it uses as much as digits as its factorization.

12213874477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27228.

The product of its digits is 526848, while the sum is 46.

The spelling of 12213874477 in words is "twelve billion, two hundred thirteen million, eight hundred seventy-four thousand, four hundred seventy-seven".