12144217402 has 8 divisors (see below), whose sum is σ = 18298014336. Its totient is φ = 6044879292.

The previous prime is 12144217361. The next prime is 12144217411. The reversal of 12144217402 is 20471244121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13614148 + ... + 13615039.

It is an arithmetic number, because the mean of its divisors is an integer number (2287251792).

Almost surely, 2^12144217402 is an apocalyptic number.

12144217402 is a deficient number, since it is larger than the sum of its proper divisors (6153796934).

12144217402 is a wasteful number, since it uses less digits than its factorization.

12144217402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27229412.

The product of its (nonzero) digits is 3584, while the sum is 28.

The spelling of 12144217402 in words is "twelve billion, one hundred forty-four million, two hundred seventeen thousand, four hundred two".