200210220211961 has 2 divisors, whose sum is σ = 200210220211962. Its totient is φ = 200210220211960.

The previous prime is 200210220211957. The next prime is 200210220212011. The reversal of 200210220211961 is 169112022012002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107640210000400 + 92570010211561 = 10374980^2 + 9621331^2 .

It is a cyclic number.

It is not a de Polignac number, because 200210220211961 - 2² = 200210220211957 is a prime.

It is not a weakly prime, because it can be changed into another prime (200210220211901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105110105980 + 100105110105981.

It is an arithmetic number, because the mean of its divisors is an integer number (100105110105981).

Almost surely, 2^{200210220211961} is an apocalyptic number.

It is an amenable number.

200210220211961 is a deficient number, since it is larger than the sum of its proper divisors (1).

200210220211961 is an equidigital number, since it uses as much as digits as its factorization.

200210220211961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

Adding to 200210220211961 its reverse (169112022012002), we get a palindrome (369322242223963).

The spelling of 200210220211961 in words is "two hundred trillion, two hundred ten billion, two hundred twenty million, two hundred eleven thousand, nine hundred sixty-one".