10002120111992 has 32 divisors (see below), whose sum is σ = 18957884364720. Its totient is φ = 4946825706240.

The previous prime is 10002120111959. The next prime is 10002120112067. The reversal of 10002120111992 is 29911102120001.

10002120111992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8272853 + ... + 9404484.

Almost surely, 2^{10002120111992} is an apocalyptic number.

It is an amenable number.

10002120111992 is a deficient number, since it is larger than the sum of its proper divisors (8955764252728).

10002120111992 is a wasteful number, since it uses less digits than its factorization.

10002120111992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17678111 (or 17678107 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 29.

Adding to 10002120111992 its reverse (29911102120001), we get a palindrome (39913222231993).

The spelling of 10002120111992 in words is "ten trillion, two billion, one hundred twenty million, one hundred eleven thousand, nine hundred ninety-two".