1232111212212 has 96 divisors (see below), whose sum is σ = 2904975360000. Its totient is φ = 406436164992.

The previous prime is 1232111212207. The next prime is 1232111212223. The reversal of 1232111212212 is 2122121112321.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616362789 + ... + 616364787.

It is an arithmetic number, because the mean of its divisors is an integer number (30260160000).

Almost surely, 2^{1232111212212} is an apocalyptic number.

1232111212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1232111212212 is an abundant number, since it is smaller than the sum of its proper divisors (1672864147788).

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

1232111212212 is a wasteful number, since it uses less digits than its factorization.

1232111212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3325 (or 3323 counting only the distinct ones).

The product of its digits is 192, while the sum is 21.

Adding to 1232111212212 its reverse (2122121112321), we get a palindrome (3354232324533).

The spelling of 1232111212212 in words is "one trillion, two hundred thirty-two billion, one hundred eleven million, two hundred twelve thousand, two hundred twelve".