200122200999961 has 2 divisors, whose sum is σ = 200122200999962. Its totient is φ = 200122200999960.

The previous prime is 200122200999953. The next prime is 200122200999991. The reversal of 200122200999961 is 169999002221002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124115887214361 + 76006313785600 = 11140731^2 + 8718160^2 .

It is a cyclic number.

It is not a de Polignac number, because 200122200999961 - 2³ = 200122200999953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200122200999899 and 200122200999908.

It is not a weakly prime, because it can be changed into another prime (200122200999901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061100499980 + 100061100499981.

It is an arithmetic number, because the mean of its divisors is an integer number (100061100499981).

Almost surely, 2^{200122200999961} is an apocalyptic number.

It is an amenable number.

200122200999961 is a deficient number, since it is larger than the sum of its proper divisors (1).

200122200999961 is an equidigital number, since it uses as much as digits as its factorization.

200122200999961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 52.

The spelling of 200122200999961 in words is "two hundred trillion, one hundred twenty-two billion, two hundred million, nine hundred ninety-nine thousand, nine hundred sixty-one".