12022311998 has 16 divisors (see below), whose sum is σ = 18431483904. Its totient is φ = 5879817720.

The previous prime is 12022311989. The next prime is 12022312013. The reversal of 12022311998 is 89911322021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315290 + ... + 351357.

It is an arithmetic number, because the mean of its divisors is an integer number (1151967744).

Almost surely, 2^12022311998 is an apocalyptic number.

12022311998 is a deficient number, since it is larger than the sum of its proper divisors (6409171906).

12022311998 is a wasteful number, since it uses less digits than its factorization.

12022311998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666847.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 12022311998 in words is "twelve billion, twenty-two million, three hundred eleven thousand, nine hundred ninety-eight".