221311210234 has 8 divisors (see below), whose sum is σ = 332716177440. Its totient is φ = 110405817756.

The previous prime is 221311210193. The next prime is 221311210243. The reversal of 221311210234 is 432012113122.

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

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, 124892574 + ... + 124894345.

It is an arithmetic number, because the mean of its divisors is an integer number (41589522180).

Almost surely, 2^221311210234 is an apocalyptic number.

221311210234 is a deficient number, since it is larger than the sum of its proper divisors (111404967206).

221311210234 is a wasteful number, since it uses less digits than its factorization.

221311210234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249787364.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221311210234 its reverse (432012113122), we get a palindrome (653323323356).

The spelling of 221311210234 in words is "two hundred twenty-one billion, three hundred eleven million, two hundred ten thousand, two hundred thirty-four".