21232133123212 has 36 divisors (see below), whose sum is σ = 40948909272040. Its totient is φ = 9625505218560.

The previous prime is 21232133123209. The next prime is 21232133123221.

21232133123212 is nontrivially palindromic in base 10.

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 11 ways as a sum of consecutive naturals, for example, 57689973 + ... + 58056844.

Almost surely, 2^{21232133123212} is an apocalyptic number.

21232133123212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21232133123212 is a deficient number, since it is larger than the sum of its proper divisors (19716776148828).

21232133123212 is a wasteful number, since it uses less digits than its factorization.

21232133123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115747222 (or 115747209 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

It can be divided in two parts, 2123213 and 3123212, that added together give a palindrome (5246425).

The spelling of 21232133123212 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred thirty-three million, one hundred twenty-three thousand, two hundred twelve".