1120121988 has 48 divisors (see below), whose sum is σ = 2731349376. Its totient is φ = 356604160.

The previous prime is 1120121963. The next prime is 1120122019. The reversal of 1120121988 is 8891210211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207370 + ... + 212702.

It is an arithmetic number, because the mean of its divisors is an integer number (56903112).

Almost surely, 2^1120121988 is an apocalyptic number.

It is an amenable number.

1120121988 is an abundant number, since it is smaller than the sum of its proper divisors (1611227388).

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

1120121988 is a wasteful number, since it uses less digits than its factorization.

1120121988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124 (or 6122 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 33.

The square root of 1120121988 is about 33468.2235560838. The cubic root of 1120121988 is about 1038.5365226902.

The spelling of 1120121988 in words is "one billion, one hundred twenty million, one hundred twenty-one thousand, nine hundred eighty-eight".