2201020311997 has 8 divisors (see below), whose sum is σ = 2370416342616. Its totient is φ = 2031636677952.

The previous prime is 2201020311989. The next prime is 2201020312009. The reversal of 2201020311997 is 7991130201022.

It can be written as a sum of positive squares in 4 ways, for example, as 11644352281 + 2189375959716 = 107909^2 + 1479654^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201020311997 - 2³ = 2201020311989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201020315997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2728738 + ... + 3442099.

It is an arithmetic number, because the mean of its divisors is an integer number (296302042827).

Almost surely, 2^{2201020311997} is an apocalyptic number.

It is an amenable number.

2201020311997 is a deficient number, since it is larger than the sum of its proper divisors (169396030619).

2201020311997 is a wasteful number, since it uses less digits than its factorization.

2201020311997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198287.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 2201020311997 in words is "two trillion, two hundred one billion, twenty million, three hundred eleven thousand, nine hundred ninety-seven".