2201020020949 has 2 divisors, whose sum is σ = 2201020020950. Its totient is φ = 2201020020948.

The previous prime is 2201020020931. The next prime is 2201020021021. The reversal of 2201020020949 is 9490200201022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1470866860849 + 730153160100 = 1212793^2 + 854490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201020020949 - 2⁷ = 2201020020821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2201020020949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201020020649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100510010474 + 1100510010475.

It is an arithmetic number, because the mean of its divisors is an integer number (1100510010475).

Almost surely, 2^{2201020020949} is an apocalyptic number.

It is an amenable number.

2201020020949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201020020949 is an equidigital number, since it uses as much as digits as its factorization.

2201020020949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 2201020020949 in words is "two trillion, two hundred one billion, twenty million, twenty thousand, nine hundred forty-nine".