111010120001992 has 16 divisors (see below), whose sum is σ = 208157535985500. Its totient is φ = 55501443739200.

The previous prime is 111010120001983. The next prime is 111010120001993. The reversal of 111010120001992 is 299100021010111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 110657229351876 + 352890650116 = 10519374^2 + 594046^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111010120001992.

It is not an unprimeable number, because it can be changed into a prime (111010120001993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451902259 + ... + 452147842.

Almost surely, 2^{111010120001992} is an apocalyptic number.

It is an amenable number.

111010120001992 is a deficient number, since it is larger than the sum of its proper divisors (97147415983508).

111010120001992 is a wasteful number, since it uses less digits than its factorization.

111010120001992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904065456 (or 904065452 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 111010120001992 in words is "one hundred eleven trillion, ten billion, one hundred twenty million, one thousand, nine hundred ninety-two".