226672221677 has 4 divisors (see below), whose sum is σ = 247278787296. Its totient is φ = 206065656060.

The previous prime is 226672221667. The next prime is 226672221697. The reversal of 226672221677 is 776122276622.

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 not a de Polignac number, because 226672221677 - 2⁸ = 226672221421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226672221667) 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, 10303282793 + ... + 10303282814.

It is an arithmetic number, because the mean of its divisors is an integer number (61819696824).

Almost surely, 2^226672221677 is an apocalyptic number.

It is an amenable number.

226672221677 is a deficient number, since it is larger than the sum of its proper divisors (20606565619).

226672221677 is a wasteful number, since it uses less digits than its factorization.

226672221677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20606565618.

The product of its digits is 2370816, while the sum is 50.

Subtracting 226672221677 from its reverse (776122276622), we obtain a palindrome (549450054945).

The spelling of 226672221677 in words is "two hundred twenty-six billion, six hundred seventy-two million, two hundred twenty-one thousand, six hundred seventy-seven".