210201222061 has 2 divisors, whose sum is σ = 210201222062. Its totient is φ = 210201222060.

The previous prime is 210201222031. The next prime is 210201222097. The reversal of 210201222061 is 160222102012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154696689225 + 55504532836 = 393315^2 + 235594^2 .

It is a cyclic number.

It is not a de Polignac number, because 210201222061 - 2¹⁷ = 210201090989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210201222001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105100611030 + 105100611031.

It is an arithmetic number, because the mean of its divisors is an integer number (105100611031).

Almost surely, 2^210201222061 is an apocalyptic number.

It is an amenable number.

210201222061 is a deficient number, since it is larger than the sum of its proper divisors (1).

210201222061 is an equidigital number, since it uses as much as digits as its factorization.

210201222061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 210201222061 its reverse (160222102012), we get a palindrome (370423324073).

The spelling of 210201222061 in words is "two hundred ten billion, two hundred one million, two hundred twenty-two thousand, sixty-one".