233220423011312 has 20 divisors (see below), whose sum is σ = 492943166819736. Its totient is φ = 106009283186880.

The previous prime is 233220423011311. The next prime is 233220423011341. The reversal of 233220423011312 is 213110324022332.

It is a super-2 number, since 2×233220423011312² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233220423011311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662558019743 + ... + 662558020094.

Almost surely, 2^{233220423011312} is an apocalyptic number.

233220423011312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

233220423011312 is an abundant number, since it is smaller than the sum of its proper divisors (259722743808424).

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

233220423011312 is a wasteful number, since it uses less digits than its factorization.

233220423011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325116039856 (or 1325116039850 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 233220423011312 its reverse (213110324022332), we get a palindrome (446330747033644).

The spelling of 233220423011312 in words is "two hundred thirty-three trillion, two hundred twenty billion, four hundred twenty-three million, eleven thousand, three hundred twelve".