1122112889 has 2 divisors, whose sum is σ = 1122112890. Its totient is φ = 1122112888.

The previous prime is 1122112883. The next prime is 1122112903. The reversal of 1122112889 is 9882112211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564775225 + 557337664 = 23765^2 + 23608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122112889 - 2²⁰ = 1121064313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122112883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561056444 + 561056445.

It is an arithmetic number, because the mean of its divisors is an integer number (561056445).

Almost surely, 2^1122112889 is an apocalyptic number.

It is an amenable number.

1122112889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122112889 is an equidigital number, since it uses as much as digits as its factorization.

1122112889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 35.

The square root of 1122112889 is about 33497.9535046546. The cubic root of 1122112889 is about 1039.1514555981.

The spelling of 1122112889 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, eight hundred eighty-nine".