221230030 has 64 divisors (see below), whose sum is σ = 470701440. Its totient is φ = 73281024.

The previous prime is 221230021. The next prime is 221230057. The reversal of 221230030 is 30032122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 592924 + ... + 593296.

It is an arithmetic number, because the mean of its divisors is an integer number (7354710).

Almost surely, 2^221230030 is an apocalyptic number.

221230030 is an abundant number, since it is smaller than the sum of its proper divisors (249471410).

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

221230030 is a wasteful number, since it uses less digits than its factorization.

221230030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 221230030 is about 14873.8034812888. The cubic root of 221230030 is about 604.8040528380.

Adding to 221230030 its reverse (30032122), we get a palindrome (251262152).

The spelling of 221230030 in words is "two hundred twenty-one million, two hundred thirty thousand, thirty".