226615111 has 2 divisors, whose sum is σ = 226615112. Its totient is φ = 226615110.

The previous prime is 226615097. The next prime is 226615133. The reversal of 226615111 is 111516622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226615111 - 2⁵ = 226615079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226615171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113307555 + 113307556.

It is an arithmetic number, because the mean of its divisors is an integer number (113307556).

Almost surely, 2^226615111 is an apocalyptic number.

226615111 is a deficient number, since it is larger than the sum of its proper divisors (1).

226615111 is an equidigital number, since it uses as much as digits as its factorization.

226615111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 25.

The square root of 226615111 is about 15053.7407643416. The cubic root of 226615111 is about 609.6720543060.

It can be divided in two parts, 22661 and 5111, that added together give a palindrome (27772).

The spelling of 226615111 in words is "two hundred twenty-six million, six hundred fifteen thousand, one hundred eleven".