1102120992 has 480 divisors, whose sum is σ = 4098124800. Its totient is φ = 283295232.

The previous prime is 1102120967. The next prime is 1102121029. The reversal of 1102120992 is 2990212011.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7928859 + ... + 7928997.

It is an arithmetic number, because the mean of its divisors is an integer number (8537760).

Almost surely, 2^1102120992 is an apocalyptic number.

1102120992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102120992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049062400).

1102120992 is an abundant number, since it is smaller than the sum of its proper divisors (2996003808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1102120992 is a wasteful number, since it uses less digits than its factorization.

1102120992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1102120992 is about 33198.2076624627. The cubic root of 1102120992 is about 1032.9431615634.

The spelling of 1102120992 in words is "one billion, one hundred two million, one hundred twenty thousand, nine hundred ninety-two".