210022202120221 has 2 divisors, whose sum is σ = 210022202120222. Its totient is φ = 210022202120220.

The previous prime is 210022202120147. The next prime is 210022202120249. The reversal of 210022202120221 is 122021202220012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187116272112025 + 22905930008196 = 13679045^2 + 4786014^2 .

It is a cyclic number.

It is not a de Polignac number, because 210022202120221 - 2²³ = 210022193731613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210022202120251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105011101060110 + 105011101060111.

It is an arithmetic number, because the mean of its divisors is an integer number (105011101060111).

Almost surely, 2^{210022202120221} is an apocalyptic number.

It is an amenable number.

210022202120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

210022202120221 is an equidigital number, since it uses as much as digits as its factorization.

210022202120221 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 19.

Adding to 210022202120221 its reverse (122021202220012), we get a palindrome (332043404340233).

The spelling of 210022202120221 in words is "two hundred ten trillion, twenty-two billion, two hundred two million, one hundred twenty thousand, two hundred twenty-one".