12204283729 has 21 divisors (see below), whose sum is σ = 13588403641. Its totient is φ = 10961131060.

The previous prime is 12204283723. The next prime is 12204283769. The reversal of 12204283729 is 92738240221.

It is a happy number.

The square root of 12204283729 is 110473.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 12204283729 - 2²³ = 12195895121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12204283691 and 12204283700.

It is not an unprimeable number, because it can be changed into a prime (12204283723) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 147039522 + ... + 147039604.

Almost surely, 2^12204283729 is an apocalyptic number.

12204283729 is the 110473-rd square number.

12204283729 is the 55237-th centered octagonal number.

It is an amenable number.

12204283729 is a deficient number, since it is larger than the sum of its proper divisors (1384119912).

12204283729 is an frugal number, since it uses more digits than its factorization.

12204283729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 12204283729 in words is "twelve billion, two hundred four million, two hundred eighty-three thousand, seven hundred twenty-nine".