2266204202681 has 2 divisors, whose sum is σ = 2266204202682. Its totient is φ = 2266204202680.

The previous prime is 2266204202567. The next prime is 2266204202683. The reversal of 2266204202681 is 1862024026622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803960589456 + 462243613225 = 1343116^2 + 679885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2266204202681 is a prime.

It is a super-2 number, since 2×2266204202681² (a number of 26 digits) contains 22 as substring.

Together with 2266204202683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2266204202683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133102101340 + 1133102101341.

It is an arithmetic number, because the mean of its divisors is an integer number (1133102101341).

Almost surely, 2^{2266204202681} is an apocalyptic number.

It is an amenable number.

2266204202681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266204202681 is an equidigital number, since it uses as much as digits as its factorization.

2266204202681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 2266204202681 in words is "two trillion, two hundred sixty-six billion, two hundred four million, two hundred two thousand, six hundred eighty-one".