12221122332 has 24 divisors (see below), whose sum is σ = 28541696400. Its totient is φ = 4070029696.

The previous prime is 12221122327. The next prime is 12221122349. The reversal of 12221122332 is 23322112221.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12221122299 and 12221122308.

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, 445857 + ... + 472472.

It is an arithmetic number, because the mean of its divisors is an integer number (1189237350).

Almost surely, 2^12221122332 is an apocalyptic number.

12221122332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12221122332 is an abundant number, since it is smaller than the sum of its proper divisors (16320574068).

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

12221122332 is a wasteful number, since it uses less digits than its factorization.

12221122332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919445 (or 919443 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

Adding to 12221122332 its reverse (23322112221), we get a palindrome (35543234553).

The spelling of 12221122332 in words is "twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, three hundred thirty-two".