1212211112232 has 64 divisors (see below), whose sum is σ = 3038566536000. Its totient is φ = 402999634944.

The previous prime is 1212211112219. The next prime is 1212211112251. The reversal of 1212211112232 is 2322111122121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1212211112199 and 1212211112208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18156303 + ... + 18222945.

It is an arithmetic number, because the mean of its divisors is an integer number (47477602125).

Almost surely, 2^{1212211112232} is an apocalyptic number.

1212211112232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212211112232 is an abundant number, since it is smaller than the sum of its proper divisors (1826355423768).

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

1212211112232 is a wasteful number, since it uses less digits than its factorization.

1212211112232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68650 (or 68646 counting only the distinct ones).

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

Adding to 1212211112232 its reverse (2322111122121), we get a palindrome (3534322234353).

The spelling of 1212211112232 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred twelve thousand, two hundred thirty-two".