221223010 has 16 divisors (see below), whose sum is σ = 398547072. Its totient is φ = 88412400.

The previous prime is 221223001. The next prime is 221223029. The reversal of 221223010 is 10322122.

221223010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3325 + ... + 21295.

It is an arithmetic number, because the mean of its divisors is an integer number (24909192).

Almost surely, 2^221223010 is an apocalyptic number.

221223010 is a deficient number, since it is larger than the sum of its proper divisors (177324062).

221223010 is a wasteful number, since it uses less digits than its factorization.

221223010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19209.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221223010 is about 14873.5674940480. The cubic root of 221223010 is about 604.7976556212.

Adding to 221223010 its reverse (10322122), we get a palindrome (231545132).

The spelling of 221223010 in words is "two hundred twenty-one million, two hundred twenty-three thousand, ten".