1021113121199 has 2 divisors, whose sum is σ = 1021113121200. Its totient is φ = 1021113121198.

The previous prime is 1021113121181. The next prime is 1021113121243. The reversal of 1021113121199 is 9911213111201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021113121199 - 2⁸ = 1021113120943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021113121129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510556560599 + 510556560600.

It is an arithmetic number, because the mean of its divisors is an integer number (510556560600).

Almost surely, 2^{1021113121199} is an apocalyptic number.

1021113121199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021113121199 is an equidigital number, since it uses as much as digits as its factorization.

1021113121199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 32.

The spelling of 1021113121199 in words is "one trillion, twenty-one billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred ninety-nine".