12222212132 has 48 divisors (see below), whose sum is σ = 23218899312. Its totient is φ = 5595955200.

The previous prime is 12222212131. The next prime is 12222212141. The reversal of 12222212132 is 23121222221.

It can be written as a sum of positive squares in 8 ways, for example, as 500685376 + 11721526756 = 22376^2 + 108266^2 .

It is not an unprimeable number, because it can be changed into a prime (12222212131) 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, 4022918 + ... + 4025954.

It is an arithmetic number, because the mean of its divisors is an integer number (483727069).

Almost surely, 2^12222212132 is an apocalyptic number.

It is an amenable number.

12222212132 is a deficient number, since it is larger than the sum of its proper divisors (10996687180).

12222212132 is a wasteful number, since it uses less digits than its factorization.

12222212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3648 (or 3646 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

Adding to 12222212132 its reverse (23121222221), we get a palindrome (35343434353).

The spelling of 12222212132 in words is "twelve billion, two hundred twenty-two million, two hundred twelve thousand, one hundred thirty-two".