111221002099 has 2 divisors, whose sum is σ = 111221002100. Its totient is φ = 111221002098.

The previous prime is 111221002027. The next prime is 111221002117. The reversal of 111221002099 is 990200122111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111221002099 - 2⁷ = 111221001971 is a prime.

It is a super-2 number, since 2×111221002099² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111221005099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610501049 + 55610501050.

It is an arithmetic number, because the mean of its divisors is an integer number (55610501050).

Almost surely, 2^111221002099 is an apocalyptic number.

111221002099 is a deficient number, since it is larger than the sum of its proper divisors (1).

111221002099 is an equidigital number, since it uses as much as digits as its factorization.

111221002099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 111221002099 in words is "one hundred eleven billion, two hundred twenty-one million, two thousand, ninety-nine".