1120121099 has 2 divisors, whose sum is σ = 1120121100. Its totient is φ = 1120121098.

The previous prime is 1120121089. The next prime is 1120121113. The reversal of 1120121099 is 9901210211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120121099 - 2⁴ = 1120121083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1120121069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560060549 + 560060550.

It is an arithmetic number, because the mean of its divisors is an integer number (560060550).

Almost surely, 2^1120121099 is an apocalyptic number.

1120121099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120121099 is an equidigital number, since it uses as much as digits as its factorization.

1120121099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 1120121099 is about 33468.2102748265. The cubic root of 1120121099 is about 1038.5362479406.

The spelling of 1120121099 in words is "one billion, one hundred twenty million, one hundred twenty-one thousand, ninety-nine".