21233033212 has 12 divisors (see below), whose sum is σ = 37204435800. Its totient is φ = 10603194416.

The previous prime is 21233033147. The next prime is 21233033287.

21233033212 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 3 ways as a sum of consecutive naturals, for example, 3326962 + ... + 3333337.

It is an arithmetic number, because the mean of its divisors is an integer number (3100369650).

Almost surely, 2^21233033212 is an apocalyptic number.

It is an amenable number.

21233033212 is a deficient number, since it is larger than the sum of its proper divisors (15971402588).

21233033212 is a wasteful number, since it uses less digits than its factorization.

21233033212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6661100 (or 6661098 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

It can be divided in two parts, 212330 and 33212, that added together give a palindrome (245542).

The spelling of 21233033212 in words is "twenty-one billion, two hundred thirty-three million, thirty-three thousand, two hundred twelve".