227220151 has 8 divisors (see below), whose sum is σ = 241119360. Its totient is φ = 213655992.

The previous prime is 227220143. The next prime is 227220157. The reversal of 227220151 is 151022722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 227220151 - 2³ = 227220143 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 (227220157) 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, 82365 + ... + 85078.

It is an arithmetic number, because the mean of its divisors is an integer number (30139920).

Almost surely, 2^227220151 is an apocalyptic number.

227220151 is a deficient number, since it is larger than the sum of its proper divisors (13899209).

227220151 is a wasteful number, since it uses less digits than its factorization.

227220151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167525.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 227220151 is about 15073.8233703331. The cubic root of 227220151 is about 610.2141602239.

Adding to 227220151 its reverse (151022722), we get a palindrome (378242873).

The spelling of 227220151 in words is "two hundred twenty-seven million, two hundred twenty thousand, one hundred fifty-one".