1233212222 has 32 divisors (see below), whose sum is σ = 2085519744. Its totient is φ = 542052000.

The previous prime is 1233212221. The next prime is 1233212237. The reversal of 1233212222 is 2222123321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1233212194 and 1233212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233212221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89093 + ... + 101999.

It is an arithmetic number, because the mean of its divisors is an integer number (65172492).

Almost surely, 2^1233212222 is an apocalyptic number.

1233212222 is a deficient number, since it is larger than the sum of its proper divisors (852307522).

1233212222 is a wasteful number, since it uses less digits than its factorization.

1233212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13064.

The product of its digits is 576, while the sum is 20.

The square root of 1233212222 is about 35117.1214936532. The cubic root of 1233212222 is about 1072.3731709048.

Adding to 1233212222 its reverse (2222123321), we get a palindrome (3455335543).

The spelling of 1233212222 in words is "one billion, two hundred thirty-three million, two hundred twelve thousand, two hundred twenty-two".