200021221109999 has 2 divisors, whose sum is σ = 200021221110000. Its totient is φ = 200021221109998.

The previous prime is 200021221109977. The next prime is 200021221110043. The reversal of 200021221109999 is 999901122120002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200021221109999 - 2³⁶ = 199952501633263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200021221102999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100010610554999 + 100010610555000.

It is an arithmetic number, because the mean of its divisors is an integer number (100010610555000).

Almost surely, 2^{200021221109999} is an apocalyptic number.

200021221109999 is a deficient number, since it is larger than the sum of its proper divisors (1).

200021221109999 is an equidigital number, since it uses as much as digits as its factorization.

200021221109999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 47.

The spelling of 200021221109999 in words is "two hundred trillion, twenty-one billion, two hundred twenty-one million, one hundred nine thousand, nine hundred ninety-nine".