12001122299978 has 32 divisors (see below), whose sum is σ = 21831707934720. Its totient is φ = 4836329728560.

The previous prime is 12001122299951. The next prime is 12001122300059. The reversal of 12001122299978 is 87999222110021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315833258 + ... + 315871253.

It is an arithmetic number, because the mean of its divisors is an integer number (682240872960).

Almost surely, 2^{12001122299978} is an apocalyptic number.

12001122299978 is a deficient number, since it is larger than the sum of its proper divisors (9830585634742).

12001122299978 is a wasteful number, since it uses less digits than its factorization.

12001122299978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631704602.

The product of its (nonzero) digits is 653184, while the sum is 53.

The spelling of 12001122299978 in words is "twelve trillion, one billion, one hundred twenty-two million, two hundred ninety-nine thousand, nine hundred seventy-eight".