221403114 has 24 divisors (see below), whose sum is σ = 480200292. Its totient is φ = 73725120.

The previous prime is 221403113. The next prime is 221403137. The reversal of 221403114 is 411304122.

It can be written as a sum of positive squares in 2 ways, for example, as 193682889 + 27720225 = 13917^2 + 5265^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (221403113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13302 + ... + 24894.

Almost surely, 2^221403114 is an apocalyptic number.

221403114 is an abundant number, since it is smaller than the sum of its proper divisors (258797178).

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

221403114 is a wasteful number, since it uses less digits than its factorization.

221403114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12662 (or 12659 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 221403114 is about 14879.6207612963. The cubic root of 221403114 is about 604.9617388093.

Adding to 221403114 its reverse (411304122), we get a palindrome (632707236).

The spelling of 221403114 in words is "two hundred twenty-one million, four hundred three thousand, one hundred fourteen".