20211210111982 has 8 divisors (see below), whose sum is σ = 30317926936752. Its totient is φ = 10105234466400.

The previous prime is 20211210111941. The next prime is 20211210112013. The reversal of 20211210111982 is 28911101211202.

It is a happy number.

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

It is a congruent number.

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, 185226619 + ... + 185335702.

It is an arithmetic number, because the mean of its divisors is an integer number (3789740867094).

Almost surely, 2^{20211210111982} is an apocalyptic number.

20211210111982 is a deficient number, since it is larger than the sum of its proper divisors (10106716824770).

20211210111982 is a wasteful number, since it uses less digits than its factorization.

20211210111982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370589594.

The product of its (nonzero) digits is 1152, while the sum is 31.

The spelling of 20211210111982 in words is "twenty trillion, two hundred eleven billion, two hundred ten million, one hundred eleven thousand, nine hundred eighty-two".