221652652 has 12 divisors (see below), whose sum is σ = 417730096. Its totient is φ = 102301200.

The previous prime is 221652649. The next prime is 221652653. The reversal of 221652652 is 256256122.

It is a happy number.

221652652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (221652653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2131224 + ... + 2131327.

Almost surely, 2^221652652 is an apocalyptic number.

It is an amenable number.

221652652 is a deficient number, since it is larger than the sum of its proper divisors (196077444).

221652652 is a wasteful number, since it uses less digits than its factorization.

221652652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262568 (or 4262566 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 221652652 is about 14888.0036270818. The cubic root of 221652652 is about 605.1889326374.

The spelling of 221652652 in words is "two hundred twenty-one million, six hundred fifty-two thousand, six hundred fifty-two".