2211200022257 has 2 divisors, whose sum is σ = 2211200022258. Its totient is φ = 2211200022256.

The previous prime is 2211200022193. The next prime is 2211200022277. The reversal of 2211200022257 is 7522200021122.

It is a happy number.

2211200022257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2204916130816 + 6283891441 = 1484896^2 + 79271^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211200022257 - 2⁶ = 2211200022193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211200022277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105600011128 + 1105600011129.

It is an arithmetic number, because the mean of its divisors is an integer number (1105600011129).

Almost surely, 2^{2211200022257} is an apocalyptic number.

It is an amenable number.

2211200022257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211200022257 is an equidigital number, since it uses as much as digits as its factorization.

2211200022257 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 2211200022257 its reverse (7522200021122), we get a palindrome (9733400043379).

The spelling of 2211200022257 in words is "two trillion, two hundred eleven billion, two hundred million, twenty-two thousand, two hundred fifty-seven".