202202000220221 has 2 divisors, whose sum is σ = 202202000220222. Its totient is φ = 202202000220220.

The previous prime is 202202000220217. The next prime is 202202000220289. The reversal of 202202000220221 is 122022000202202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190376138954596 + 11825861265625 = 13797686^2 + 3438875^2 .

It is a cyclic number.

It is not a de Polignac number, because 202202000220221 - 2² = 202202000220217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202202000220221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202202000420221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101101000110110 + 101101000110111.

It is an arithmetic number, because the mean of its divisors is an integer number (101101000110111).

Almost surely, 2^{202202000220221} is an apocalyptic number.

It is an amenable number.

202202000220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

202202000220221 is an equidigital number, since it uses as much as digits as its factorization.

202202000220221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 202202000220221 its reverse (122022000202202), we get a palindrome (324224000422423).

The spelling of 202202000220221 in words is "two hundred two trillion, two hundred two billion, two hundred twenty thousand, two hundred twenty-one".