12231153220 has 48 divisors (see below), whose sum is σ = 30175887168. Its totient is φ = 4105560960.

The previous prime is 12231153203. The next prime is 12231153247. The reversal of 12231153220 is 2235113221.

It is a super-2 number, since 2×12231153220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12231153191 and 12231153200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2135454 + ... + 2141173.

It is an arithmetic number, because the mean of its divisors is an integer number (628664316).

Almost surely, 2^12231153220 is an apocalyptic number.

12231153220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231153220 is an abundant number, since it is smaller than the sum of its proper divisors (17944733948).

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

12231153220 is a wasteful number, since it uses less digits than its factorization.

12231153220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276660 (or 4276658 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12231153220 its reverse (2235113221), we get a palindrome (14466266441).

The spelling of 12231153220 in words is "twelve billion, two hundred thirty-one million, one hundred fifty-three thousand, two hundred twenty".