221233339 has 2 divisors, whose sum is σ = 221233340. Its totient is φ = 221233338.

The previous prime is 221233319. The next prime is 221233357. The reversal of 221233339 is 933332122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221233339 - 2¹⁷ = 221102267 is a prime.

It is not a weakly prime, because it can be changed into another prime (221233319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110616669 + 110616670.

It is an arithmetic number, because the mean of its divisors is an integer number (110616670).

Almost surely, 2^221233339 is an apocalyptic number.

221233339 is a deficient number, since it is larger than the sum of its proper divisors (1).

221233339 is an equidigital number, since it uses as much as digits as its factorization.

221233339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 28.

The square root of 221233339 is about 14873.9147167113. The cubic root of 221233339 is about 604.8070682313.

The spelling of 221233339 in words is "two hundred twenty-one million, two hundred thirty-three thousand, three hundred thirty-nine".