2201022120257 has 2 divisors, whose sum is σ = 2201022120258. Its totient is φ = 2201022120256.

The previous prime is 2201022120251. The next prime is 2201022120281. The reversal of 2201022120257 is 7520212201022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737218897296 + 463803222961 = 1318036^2 + 681031^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201022120257 is a prime.

It is not a weakly prime, because it can be changed into another prime (2201022120251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100511060128 + 1100511060129.

It is an arithmetic number, because the mean of its divisors is an integer number (1100511060129).

Almost surely, 2^{2201022120257} is an apocalyptic number.

It is an amenable number.

2201022120257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201022120257 is an equidigital number, since it uses as much as digits as its factorization.

2201022120257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 2201022120257 its reverse (7520212201022), we get a palindrome (9721234321279).

The spelling of 2201022120257 in words is "two trillion, two hundred one billion, twenty-two million, one hundred twenty thousand, two hundred fifty-seven".