221233333330 has 16 divisors (see below), whose sum is σ = 421644706200. Its totient is φ = 83287843072.

The previous prime is 221233333327. The next prime is 221233333337. The reversal of 221233333330 is 33333332122.

It can be written as a sum of positive squares in 4 ways, for example, as 204142216041 + 17091117289 = 451821^2 + 130733^2 .

It is not an unprimeable number, because it can be changed into a prime (221233333337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 650686105 + ... + 650686444.

Almost surely, 2^221233333330 is an apocalyptic number.

221233333330 is a deficient number, since it is larger than the sum of its proper divisors (200411372870).

221233333330 is a wasteful number, since it uses less digits than its factorization.

221233333330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301372573.

The product of its (nonzero) digits is 17496, while the sum is 28.

Adding to 221233333330 its reverse (33333332122), we get a palindrome (254566665452).

The spelling of 221233333330 in words is "two hundred twenty-one billion, two hundred thirty-three million, three hundred thirty-three thousand, three hundred thirty".