123233212212 has 24 divisors (see below), whose sum is σ = 313684540512. Its totient is φ = 37343397600.

The previous prime is 123233212199. The next prime is 123233212213. The reversal of 123233212212 is 212212332321.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233212213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466792339 + ... + 466792602.

It is an arithmetic number, because the mean of its divisors is an integer number (13070189188).

Almost surely, 2^123233212212 is an apocalyptic number.

123233212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123233212212 is an abundant number, since it is smaller than the sum of its proper divisors (190451328300).

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

123233212212 is a wasteful number, since it uses less digits than its factorization.

123233212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933584959 (or 933584957 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 123233212212 its reverse (212212332321), we get a palindrome (335445544533).

The spelling of 123233212212 in words is "one hundred twenty-three billion, two hundred thirty-three million, two hundred twelve thousand, two hundred twelve".