1100021021999 has 2 divisors, whose sum is σ = 1100021022000. Its totient is φ = 1100021021998.

The previous prime is 1100021021977. The next prime is 1100021022017. The reversal of 1100021021999 is 9991201200011.

It is a strong prime.

It is an emirp because it is prime and its reverse (9991201200011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100021021999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100021021969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550010510999 + 550010511000.

It is an arithmetic number, because the mean of its divisors is an integer number (550010511000).

Almost surely, 2^{1100021021999} is an apocalyptic number.

1100021021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100021021999 is an equidigital number, since it uses as much as digits as its factorization.

1100021021999 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 1100021021999 in words is "one trillion, one hundred billion, twenty-one million, twenty-one thousand, nine hundred ninety-nine".