233311222009 has 2 divisors, whose sum is σ = 233311222010. Its totient is φ = 233311222008.

The previous prime is 233311221977. The next prime is 233311222021. The reversal of 233311222009 is 900222113332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200141706384 + 33169515625 = 447372^2 + 182125^2 .

It is a cyclic number.

It is not a de Polignac number, because 233311222009 - 2⁵ = 233311221977 is a prime.

It is not a weakly prime, because it can be changed into another prime (233311222409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116655611004 + 116655611005.

It is an arithmetic number, because the mean of its divisors is an integer number (116655611005).

Almost surely, 2^233311222009 is an apocalyptic number.

It is an amenable number.

233311222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

233311222009 is an equidigital number, since it uses as much as digits as its factorization.

233311222009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 233311222009 in words is "two hundred thirty-three billion, three hundred eleven million, two hundred twenty-two thousand, nine".