221233242410 has 32 divisors (see below), whose sum is σ = 403322077440. Its totient is φ = 87359807808.

The previous prime is 221233242403. The next prime is 221233242437. The reversal of 221233242410 is 14242332122.

It is a self number, because there is not a number n which added to its sum of digits gives 221233242410.

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, 6376169 + ... + 6410771.

It is an arithmetic number, because the mean of its divisors is an integer number (12603814920).

Almost surely, 2^221233242410 is an apocalyptic number.

221233242410 is a deficient number, since it is larger than the sum of its proper divisors (182088835030).

221233242410 is a wasteful number, since it uses less digits than its factorization.

221233242410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42782.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 221233242410 its reverse (14242332122), we get a palindrome (235475574532).

The spelling of 221233242410 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred forty-two thousand, four hundred ten".