12121311332232 has 144 divisors (see below), whose sum is σ = 36124147004400. Its totient is φ = 3661356980160.

The previous prime is 12121311332231. The next prime is 12121311332233. The reversal of 12121311332232 is 23223311312121.

12121311332232 is a `hidden beast` number, since 1 + 2 + 1 + 21 + 311 + 3 + 322 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (12121311332231) and next prime (12121311332233).

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 = 12121311332196 and 12121311332205.

It is not an unprimeable number, because it can be changed into a prime (12121311332231) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7651194 + ... + 9098537.

It is an arithmetic number, because the mean of its divisors is an integer number (250862131975).

Almost surely, 2^{12121311332232} is an apocalyptic number.

12121311332232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12121311332232 is an abundant number, since it is smaller than the sum of its proper divisors (24002835672168).

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

12121311332232 is a wasteful number, since it uses less digits than its factorization.

12121311332232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16749808 (or 16749778 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 12121311332232 its reverse (23223311312121), we get a palindrome (35344622644353).

The spelling of 12121311332232 in words is "twelve trillion, one hundred twenty-one billion, three hundred eleven million, three hundred thirty-two thousand, two hundred thirty-two".