202210000212221 has 2 divisors, whose sum is σ = 202210000212222. Its totient is φ = 202210000212220.

The previous prime is 202210000212169. The next prime is 202210000212247. The reversal of 202210000212221 is 122212000012202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169762007025625 + 32447993186596 = 13029275^2 + 5696314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202210000212221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202210000212221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202210000212721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101105000106110 + 101105000106111.

It is an arithmetic number, because the mean of its divisors is an integer number (101105000106111).

Almost surely, 2^{202210000212221} is an apocalyptic number.

It is an amenable number.

202210000212221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202210000212221 is an equidigital number, since it uses as much as digits as its factorization.

202210000212221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202210000212221 its reverse (122212000012202), we get a palindrome (324422000224423).

The spelling of 202210000212221 in words is "two hundred two trillion, two hundred ten billion, two hundred twelve thousand, two hundred twenty-one".