226397122561 has 8 divisors (see below), whose sum is σ = 226700255880. Its totient is φ = 226094118912.

The previous prime is 226397122547. The next prime is 226397122571. The reversal of 226397122561 is 165221793622.

It can be written as a sum of positive squares in 4 ways, for example, as 3347779600 + 223049342961 = 57860^2 + 472281^2 .

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 226397122561 - 2⁵ = 226397122529 is a prime.

It is a super-3 number, since 3×226397122561³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226397122531) 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, 3753901 + ... + 3813733.

It is an arithmetic number, because the mean of its divisors is an integer number (28337531985).

Almost surely, 2^226397122561 is an apocalyptic number.

It is an amenable number.

226397122561 is a deficient number, since it is larger than the sum of its proper divisors (303133319).

226397122561 is an equidigital number, since it uses as much as digits as its factorization.

226397122561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64835.

The product of its digits is 544320, while the sum is 46.

The spelling of 226397122561 in words is "two hundred twenty-six billion, three hundred ninety-seven million, one hundred twenty-two thousand, five hundred sixty-one".