221227052 has 24 divisors (see below), whose sum is σ = 412930224. Its totient is φ = 103342592.

The previous prime is 221227003. The next prime is 221227057. The reversal of 221227052 is 250722122.

221227052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221227052² = 97882817073221408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221227057) 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, 2558 + ... + 21189.

It is an arithmetic number, because the mean of its divisors is an integer number (17205426).

Almost surely, 2^221227052 is an apocalyptic number.

It is an amenable number.

221227052 is a deficient number, since it is larger than the sum of its proper divisors (191703172).

221227052 is a wasteful number, since it uses less digits than its factorization.

221227052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23905 (or 23903 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 221227052 is about 14873.7033720590. The cubic root of 221227052 is about 604.8013390495.

Adding to 221227052 its reverse (250722122), we get a palindrome (471949174).

The spelling of 221227052 in words is "two hundred twenty-one million, two hundred twenty-seven thousand, fifty-two".