221133334 has 16 divisors (see below), whose sum is σ = 337442976. Its totient is φ = 108662400.

The previous prime is 221133329. The next prime is 221133359. The reversal of 221133334 is 433331122.

221133334 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45544 + ... + 50164.

It is an arithmetic number, because the mean of its divisors is an integer number (21090186).

Almost surely, 2^221133334 is an apocalyptic number.

221133334 is a deficient number, since it is larger than the sum of its proper divisors (116309642).

221133334 is a wasteful number, since it uses less digits than its factorization.

221133334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031.

The product of its digits is 1296, while the sum is 22.

The square root of 221133334 is about 14870.5525788385. The cubic root of 221133334 is about 604.7159233689.

Adding to 221133334 its reverse (433331122), we get a palindrome (654464456).

The spelling of 221133334 in words is "two hundred twenty-one million, one hundred thirty-three thousand, three hundred thirty-four".