221233030 has 8 divisors (see below), whose sum is σ = 398219472. Its totient is φ = 88493208.

The previous prime is 221233009. The next prime is 221233057. The reversal of 221233030 is 30332122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221232995 and 221233013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11061642 + ... + 11061661.

It is an arithmetic number, because the mean of its divisors is an integer number (49777434).

Almost surely, 2^221233030 is an apocalyptic number.

221233030 is a deficient number, since it is larger than the sum of its proper divisors (176986442).

221233030 is a wasteful number, since it uses less digits than its factorization.

221233030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22123310.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 221233030 is about 14873.9043293952. The cubic root of 221233030 is about 604.8067866500.

Adding to 221233030 its reverse (30332122), we get a palindrome (251565152).

The spelling of 221233030 in words is "two hundred twenty-one million, two hundred thirty-three thousand, thirty".