2226270557521 has 2 divisors, whose sum is σ = 2226270557522. Its totient is φ = 2226270557520.

The previous prime is 2226270557519. The next prime is 2226270557561. The reversal of 2226270557521 is 1257550726222.

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., 1222707389121 + 1003563168400 = 1105761^2 + 1001780^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226270557521 - 2¹ = 2226270557519 is a prime.

Together with 2226270557519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2226270557501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113135278760 + 1113135278761.

It is an arithmetic number, because the mean of its divisors is an integer number (1113135278761).

Almost surely, 2^{2226270557521} is an apocalyptic number.

It is an amenable number.

2226270557521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226270557521 is an equidigital number, since it uses as much as digits as its factorization.

2226270557521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 2226270557521 in words is "two trillion, two hundred twenty-six billion, two hundred seventy million, five hundred fifty-seven thousand, five hundred twenty-one".