226411572521 has 4 divisors (see below), whose sum is σ = 228609743232. Its totient is φ = 224213401812.

The previous prime is 226411572451. The next prime is 226411572533. The reversal of 226411572521 is 125275114622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226411572521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (226411572581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099085201 + ... + 1099085406.

It is an arithmetic number, because the mean of its divisors is an integer number (57152435808).

Almost surely, 2^226411572521 is an apocalyptic number.

It is an amenable number.

226411572521 is a deficient number, since it is larger than the sum of its proper divisors (2198170711).

226411572521 is a wasteful number, since it uses less digits than its factorization.

226411572521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198170710.

The product of its digits is 67200, while the sum is 38.

The spelling of 226411572521 in words is "two hundred twenty-six billion, four hundred eleven million, five hundred seventy-two thousand, five hundred twenty-one".