210021012202201 has 2 divisors, whose sum is σ = 210021012202202. Its totient is φ = 210021012202200.

The previous prime is 210021012202187. The next prime is 210021012202229. The reversal of 210021012202201 is 102202210120012.

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., 172834432515801 + 37186579686400 = 13146651^2 + 6098080^2 .

It is a cyclic number.

It is not a de Polignac number, because 210021012202201 - 2¹⁵ = 210021012169433 is a prime.

It is a super-2 number, since 2×210021012202201² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210021012202301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105010506101100 + 105010506101101.

It is an arithmetic number, because the mean of its divisors is an integer number (105010506101101).

Almost surely, 2^{210021012202201} is an apocalyptic number.

It is an amenable number.

210021012202201 is a deficient number, since it is larger than the sum of its proper divisors (1).

210021012202201 is an equidigital number, since it uses as much as digits as its factorization.

210021012202201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210021012202201 its reverse (102202210120012), we get a palindrome (312223222322213).

The spelling of 210021012202201 in words is "two hundred ten trillion, twenty-one billion, twelve million, two hundred two thousand, two hundred one".