1001110021999 has 2 divisors, whose sum is σ = 1001110022000. Its totient is φ = 1001110021998.

The previous prime is 1001110021973. The next prime is 1001110022027. The reversal of 1001110021999 is 9991200111001.

It is a weak prime.

It is an emirp because it is prime and its reverse (9991200111001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1001110021999 - 2¹³ = 1001110013807 is a prime.

It is a super-2 number, since 2×1001110021999² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001110025999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500555010999 + 500555011000.

It is an arithmetic number, because the mean of its divisors is an integer number (500555011000).

Almost surely, 2^{1001110021999} is an apocalyptic number.

1001110021999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001110021999 is an equidigital number, since it uses as much as digits as its factorization.

1001110021999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 34.

The spelling of 1001110021999 in words is "one trillion, one billion, one hundred ten million, twenty-one thousand, nine hundred ninety-nine".