1102912120 has 32 divisors (see below), whose sum is σ = 2482682400. Its totient is φ = 440963968.

The previous prime is 1102912099. The next prime is 1102912121. The reversal of 1102912120 is 212192011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102912121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108621 + ... + 118339.

It is an arithmetic number, because the mean of its divisors is an integer number (77583825).

Almost surely, 2^1102912120 is an apocalyptic number.

1102912120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102912120 is an abundant number, since it is smaller than the sum of its proper divisors (1379770280).

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

1102912120 is a wasteful number, since it uses less digits than its factorization.

1102912120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12567 (or 12563 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1102912120 is about 33210.1207465435. The cubic root of 1102912120 is about 1033.1902592985.

The spelling of 1102912120 in words is "one billion, one hundred two million, nine hundred twelve thousand, one hundred twenty".