1129222089 has 36 divisors (see below), whose sum is σ = 1699495668. Its totient is φ = 722453760.

The previous prime is 1129222067. The next prime is 1129222139. The reversal of 1129222089 is 9802229211.

It can be written as a sum of positive squares in 2 ways, for example, as 566820864 + 562401225 = 23808^2 + 23715^2 .

It is not a de Polignac number, because 1129222089 - 2²⁰ = 1128173513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129222009) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1184437 + ... + 1185389.

It is an arithmetic number, because the mean of its divisors is an integer number (47208213).

Almost surely, 2^1129222089 is an apocalyptic number.

It is an amenable number.

1129222089 is a deficient number, since it is larger than the sum of its proper divisors (570273579).

1129222089 is a wasteful number, since it uses less digits than its factorization.

1129222089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1129222089 is about 33603.8999076000. The cubic root of 1129222089 is about 1041.3413686097.

The spelling of 1129222089 in words is "one billion, one hundred twenty-nine million, two hundred twenty-two thousand, eighty-nine".