221230243234 has 64 divisors (see below), whose sum is σ = 445666781952. Its totient is φ = 79543296000.

The previous prime is 221230243193. The next prime is 221230243261. The reversal of 221230243234 is 432342032122.

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, 9600094 + ... + 9623110.

It is an arithmetic number, because the mean of its divisors is an integer number (6963543468).

Almost surely, 2^221230243234 is an apocalyptic number.

221230243234 is an abundant number, since it is smaller than the sum of its proper divisors (224436538718).

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

221230243234 is a wasteful number, since it uses less digits than its factorization.

221230243234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27851.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 221230243234 its reverse (432342032122), we get a palindrome (653572275356).

It can be divided in two parts, 221230 and 243234, that added together give a palindrome (464464).

The spelling of 221230243234 in words is "two hundred twenty-one billion, two hundred thirty million, two hundred forty-three thousand, two hundred thirty-four".