12272821844 has 12 divisors (see below), whose sum is σ = 21499293984. Its totient is φ = 6130166424.

The previous prime is 12272821807. The next prime is 12272821931. The reversal of 12272821844 is 44812827221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556702 + ... + 1564565.

It is an arithmetic number, because the mean of its divisors is an integer number (1791607832).

Almost surely, 2^12272821844 is an apocalyptic number.

It is an amenable number.

12272821844 is a deficient number, since it is larger than the sum of its proper divisors (9226472140).

12272821844 is a wasteful number, since it uses less digits than its factorization.

12272821844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122254 (or 3122252 counting only the distinct ones).

The product of its digits is 114688, while the sum is 41.

The spelling of 12272821844 in words is "twelve billion, two hundred seventy-two million, eight hundred twenty-one thousand, eight hundred forty-four".