221233231210 has 32 divisors (see below), whose sum is σ = 400276380672. Its totient is φ = 88036817280.

The previous prime is 221233231169. The next prime is 221233231223. The reversal of 221233231210 is 12132332122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3336702 + ... + 3402358.

It is an arithmetic number, because the mean of its divisors is an integer number (12508636896).

Almost surely, 2^221233231210 is an apocalyptic number.

221233231210 is a deficient number, since it is larger than the sum of its proper divisors (179043149462).

221233231210 is a wasteful number, since it uses less digits than its factorization.

221233231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67398.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221233231210 its reverse (12132332122), we get a palindrome (233365563332).

The spelling of 221233231210 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred thirty-one thousand, two hundred ten".