1150021099 has 2 divisors, whose sum is σ = 1150021100. Its totient is φ = 1150021098.

The previous prime is 1150020997. The next prime is 1150021139. The reversal of 1150021099 is 9901200511.

1150021099 = 13842² + 13843² + ... + 13847².

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1150021099 - 2⁹ = 1150020587 is a prime.

It is not a weakly prime, because it can be changed into another prime (1150081099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575010549 + 575010550.

It is an arithmetic number, because the mean of its divisors is an integer number (575010550).

Almost surely, 2^1150021099 is an apocalyptic number.

1150021099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150021099 is an equidigital number, since it uses as much as digits as its factorization.

1150021099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 1150021099 is about 33911.9610019828. The cubic root of 1150021099 is about 1047.6959604374.

The spelling of 1150021099 in words is "one billion, one hundred fifty million, twenty-one thousand, ninety-nine".