200210202001021 has 2 divisors, whose sum is σ = 200210202001022. Its totient is φ = 200210202001020.

The previous prime is 200210202000961. The next prime is 200210202001111. The reversal of 200210202001021 is 120100202012002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129360710479225 + 70849491521796 = 11373685^2 + 8417214^2 .

It is a cyclic number.

It is not a de Polignac number, because 200210202001021 - 2²⁷ = 200210067783293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200210202000992 and 200210202001010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200210202008021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105101000510 + 100105101000511.

It is an arithmetic number, because the mean of its divisors is an integer number (100105101000511).

Almost surely, 2^{200210202001021} is an apocalyptic number.

It is an amenable number.

200210202001021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200210202001021 is an equidigital number, since it uses as much as digits as its factorization.

200210202001021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200210202001021 its reverse (120100202012002), we get a palindrome (320310404013023).

The spelling of 200210202001021 in words is "two hundred trillion, two hundred ten billion, two hundred two million, one thousand, twenty-one".