12222200232 has 192 divisors, whose sum is σ = 37425360960. Its totient is φ = 3570739200.

The previous prime is 12222200231. The next prime is 12222200239. The reversal of 12222200232 is 23200222221.

12222200232 = 10344² + 10345² + ... + 10456².

12222200232 is a `hidden beast` number, since 12 + 222 + 200 + 232 = 666.

It is a super-2 number, since 2×12222200232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12222200231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3309507 + ... + 3313197.

It is an arithmetic number, because the mean of its divisors is an integer number (194923755).

Almost surely, 2^12222200232 is an apocalyptic number.

12222200232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12222200232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18712680480).

12222200232 is an abundant number, since it is smaller than the sum of its proper divisors (25203160728).

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

12222200232 is a wasteful number, since it uses less digits than its factorization.

12222200232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864 (or 3857 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 12222200232 its reverse (23200222221), we get a palindrome (35422422453).

The spelling of 12222200232 in words is "twelve billion, two hundred twenty-two million, two hundred thousand, two hundred thirty-two".