221233422 has 32 divisors (see below), whose sum is σ = 459823104. Its totient is φ = 70884000.

The previous prime is 221233403. The next prime is 221233433. The reversal of 221233422 is 224332122.

221233422 is digitally balanced in base 2, because in such base 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 15 ways as a sum of consecutive naturals, for example, 24148 + ... + 32024.

It is an arithmetic number, because the mean of its divisors is an integer number (14369472).

Almost surely, 2^221233422 is an apocalyptic number.

221233422 is an abundant number, since it is smaller than the sum of its proper divisors (238589682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221233422 is a wasteful number, since it uses less digits than its factorization.

221233422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8064.

The product of its digits is 1152, while the sum is 21.

The square root of 221233422 is about 14873.9175068305. The cubic root of 221233422 is about 604.8071438663.

Adding to 221233422 its reverse (224332122), we get a palindrome (445565544).

It can be divided in two parts, 2212334 and 22, that added together give a triangular number (2212356 = T₂₁₀₃).

The spelling of 221233422 in words is "two hundred twenty-one million, two hundred thirty-three thousand, four hundred twenty-two".