12001401021982 has 32 divisors (see below), whose sum is σ = 18905911640064. Its totient is φ = 5702800303200.

The previous prime is 12001401021941. The next prime is 12001401022021. The reversal of 12001401021982 is 28912010410021.

It is a congruent number.

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, 105319257 + ... + 105433147.

It is an arithmetic number, because the mean of its divisors is an integer number (590809738752).

Almost surely, 2^{12001401021982} is an apocalyptic number.

12001401021982 is a deficient number, since it is larger than the sum of its proper divisors (6904510618082).

12001401021982 is a wasteful number, since it uses less digits than its factorization.

12001401021982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128664.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 12001401021982 in words is "twelve trillion, one billion, four hundred one million, twenty-one thousand, nine hundred eighty-two".