12129662402 has 64 divisors (see below), whose sum is σ = 21663331200. Its totient is φ = 5021153280.

The previous prime is 12129662399. The next prime is 12129662437. The reversal of 12129662402 is 20426692121.

It is a super-3 number, since 3×12129662402³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14120249 + ... + 14121107.

It is an arithmetic number, because the mean of its divisors is an integer number (338489550).

Almost surely, 2^12129662402 is an apocalyptic number.

12129662402 is a deficient number, since it is larger than the sum of its proper divisors (9533668798).

12129662402 is a wasteful number, since it uses less digits than its factorization.

12129662402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1491.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 12129662402 in words is "twelve billion, one hundred twenty-nine million, six hundred sixty-two thousand, four hundred two".