21233133212 has 48 divisors (see below), whose sum is σ = 40111948800. Its totient is φ = 9798319872.

The previous prime is 21233133199. The next prime is 21233133241.

21233133212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005539 + ... + 1026437.

It is an arithmetic number, because the mean of its divisors is an integer number (835665600).

Almost surely, 2^21233133212 is an apocalyptic number.

It is an amenable number.

21233133212 is a deficient number, since it is larger than the sum of its proper divisors (18878815588).

21233133212 is a wasteful number, since it uses less digits than its factorization.

21233133212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21210 (or 21208 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The spelling of 21233133212 in words is "twenty-one billion, two hundred thirty-three million, one hundred thirty-three thousand, two hundred twelve".