227221272 has 96 divisors (see below), whose sum is σ = 633906000. Its totient is φ = 73497600.

The previous prime is 227221271. The next prime is 227221273. The reversal of 227221272 is 272122722.

227221272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (227221271) and next prime (227221273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227221271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 377772 + ... + 378372.

Almost surely, 2^227221272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227221272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316953000).

227221272 is an abundant number, since it is smaller than the sum of its proper divisors (406684728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

227221272 is a wasteful number, since it uses less digits than its factorization.

227221272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 754 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 227221272 is about 15073.8605539523. The cubic root of 227221272 is about 610.2151637279.

Adding to 227221272 its reverse (272122722), we get a palindrome (499343994).

The spelling of 227221272 in words is "two hundred twenty-seven million, two hundred twenty-one thousand, two hundred seventy-two".