21002210200019 has 2 divisors, whose sum is σ = 21002210200020. Its totient is φ = 21002210200018.

The previous prime is 21002210199959. The next prime is 21002210200033. The reversal of 21002210200019 is 91000201220012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21002210200019 - 2²⁸ = 21001941764563 is a prime.

It is a super-2 number, since 2×21002210200019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21002210200819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501105100009 + 10501105100010.

It is an arithmetic number, because the mean of its divisors is an integer number (10501105100010).

Almost surely, 2^{21002210200019} is an apocalyptic number.

21002210200019 is a deficient number, since it is larger than the sum of its proper divisors (1).

21002210200019 is an equidigital number, since it uses as much as digits as its factorization.

21002210200019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 21002210200019 in words is "twenty-one trillion, two billion, two hundred ten million, two hundred thousand, nineteen".