12234770820 has 48 divisors (see below), whose sum is σ = 38063733120. Its totient is φ = 3262605408.

The previous prime is 12234770809. The next prime is 12234770827. The reversal of 12234770820 is 2807743221.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12234770827) 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, 11327952 + ... + 11329031.

It is an arithmetic number, because the mean of its divisors is an integer number (792994440).

Almost surely, 2^12234770820 is an apocalyptic number.

12234770820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12234770820 is an abundant number, since it is smaller than the sum of its proper divisors (25828962300).

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

12234770820 is a wasteful number, since it uses less digits than its factorization.

12234770820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22657001 (or 22656993 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The spelling of 12234770820 in words is "twelve billion, two hundred thirty-four million, seven hundred seventy thousand, eight hundred twenty".