2210199961 has 2 divisors, whose sum is σ = 2210199962. Its totient is φ = 2210199960.

The previous prime is 2210199949. The next prime is 2210200037. The reversal of 2210199961 is 1699910122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2125210000 + 84989961 = 46100^2 + 9219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210199961 - 2¹⁹ = 2209675673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210199361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105099980 + 1105099981.

It is an arithmetic number, because the mean of its divisors is an integer number (1105099981).

Almost surely, 2^2210199961 is an apocalyptic number.

It is an amenable number.

2210199961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210199961 is an equidigital number, since it uses as much as digits as its factorization.

2210199961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 2210199961 is about 47012.7638094167. The cubic root of 2210199961 is about 1302.5983457584.

The spelling of 2210199961 in words is "two billion, two hundred ten million, one hundred ninety-nine thousand, nine hundred sixty-one".