226220861 has 8 divisors (see below), whose sum is σ = 227552160. Its totient is φ = 224893872.

The previous prime is 226220843. The next prime is 226220881. The reversal of 226220861 is 168022622.

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 226220861 - 2¹⁸ = 225958717 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 (226220881) 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, 185891 + ... + 187103.

It is an arithmetic number, because the mean of its divisors is an integer number (28444020).

Almost surely, 2^226220861 is an apocalyptic number.

It is an amenable number.

226220861 is a deficient number, since it is larger than the sum of its proper divisors (1331299).

226220861 is a wasteful number, since it uses less digits than its factorization.

226220861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 226220861 is about 15040.6403121676. The cubic root of 226220861 is about 609.3182933548.

The spelling of 226220861 in words is "two hundred twenty-six million, two hundred twenty thousand, eight hundred sixty-one".