12273228020 has 24 divisors (see below), whose sum is σ = 26260078824. Its totient is φ = 4816662656.

The previous prime is 12273227971. The next prime is 12273228059. The reversal of 12273228020 is 2082237221.

It can be written as a sum of positive squares in 4 ways, for example, as 342472036 + 11930755984 = 18506^2 + 109228^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5788199 + ... + 5790318.

It is an arithmetic number, because the mean of its divisors is an integer number (1094169951).

Almost surely, 2^12273228020 is an apocalyptic number.

12273228020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12273228020 is an abundant number, since it is smaller than the sum of its proper divisors (13986850804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12273228020 is a wasteful number, since it uses less digits than its factorization.

12273228020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11578579 (or 11578577 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 12273228020 in words is "twelve billion, two hundred seventy-three million, two hundred twenty-eight thousand, twenty".