1129909122 has 32 divisors (see below), whose sum is σ = 2514720960. Its totient is φ = 376064640.

The previous prime is 1129909117. The next prime is 1129909139. The reversal of 1129909122 is 2219099211.

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, 20797 + ... + 51887.

It is an arithmetic number, because the mean of its divisors is an integer number (78585030).

Almost surely, 2^1129909122 is an apocalyptic number.

1129909122 is an abundant number, since it is smaller than the sum of its proper divisors (1384811838).

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

1129909122 is a wasteful number, since it uses less digits than its factorization.

1129909122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31775 (or 31769 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 1129909122 is about 33614.1208720383. The cubic root of 1129909122 is about 1041.5525142138.

The spelling of 1129909122 in words is "one billion, one hundred twenty-nine million, nine hundred nine thousand, one hundred twenty-two".