210222222201997 has 2 divisors, whose sum is σ = 210222222201998. Its totient is φ = 210222222201996.

The previous prime is 210222222201977. The next prime is 210222222202009. The reversal of 210222222201997 is 799102222222012.

210222222201997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162787334686596 + 47434887515401 = 12758814^2 + 6887299^2 .

It is a cyclic number.

It is not a de Polignac number, because 210222222201997 - 2¹¹ = 210222222199949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210222222201977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105111111100998 + 105111111100999.

It is an arithmetic number, because the mean of its divisors is an integer number (105111111100999).

Almost surely, 2^{210222222201997} is an apocalyptic number.

It is an amenable number.

210222222201997 is a deficient number, since it is larger than the sum of its proper divisors (1).

210222222201997 is an equidigital number, since it uses as much as digits as its factorization.

210222222201997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 210222222201997 in words is "two hundred ten trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred one thousand, nine hundred ninety-seven".