1112000021999 has 2 divisors, whose sum is σ = 1112000022000. Its totient is φ = 1112000021998.

The previous prime is 1112000021971. The next prime is 1112000022071. The reversal of 1112000021999 is 9991200002111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112000021999 - 2²⁴ = 1111983244783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112000021929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556000010999 + 556000011000.

It is an arithmetic number, because the mean of its divisors is an integer number (556000011000).

Almost surely, 2^{1112000021999} is an apocalyptic number.

1112000021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112000021999 is an equidigital number, since it uses as much as digits as its factorization.

1112000021999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 1112000021999 in words is "one trillion, one hundred twelve billion, twenty-one thousand, nine hundred ninety-nine".