226116621 has 24 divisors (see below), whose sum is σ = 331196736. Its totient is φ = 148642560.

The previous prime is 226116619. The next prime is 226116623. The reversal of 226116621 is 126611622.

226116621 is a `hidden beast` number, since 2 + 26 + 1 + 16 + 621 = 666.

It is an interprime number because it is at equal distance from previous prime (226116619) and next prime (226116623).

It is not a de Polignac number, because 226116621 - 2¹ = 226116619 is a prime.

It is a super-2 number, since 2×226116621² = 102257452584915282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226116623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 326886 + ... + 327576.

It is an arithmetic number, because the mean of its divisors is an integer number (13799864).

Almost surely, 2^226116621 is an apocalyptic number.

It is an amenable number.

226116621 is a deficient number, since it is larger than the sum of its proper divisors (105080115).

226116621 is a wasteful number, since it uses less digits than its factorization.

226116621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153 (or 1150 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 226116621 is about 15037.1746348840. The cubic root of 226116621 is about 609.2246899962.

The spelling of 226116621 in words is "two hundred twenty-six million, one hundred sixteen thousand, six hundred twenty-one".