21330003333212 has 48 divisors (see below), whose sum is σ = 44098956195840. Its totient is φ = 8833925016000.

The previous prime is 21330003333167. The next prime is 21330003333229. The reversal of 21330003333212 is 21233330003312.

It is a happy number.

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, 16919162 + ... + 18136097.

It is an arithmetic number, because the mean of its divisors is an integer number (918728254080).

Almost surely, 2^{21330003333212} is an apocalyptic number.

It is an amenable number.

21330003333212 is an abundant number, since it is smaller than the sum of its proper divisors (22768952862628).

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

21330003333212 is a wasteful number, since it uses less digits than its factorization.

21330003333212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35056002 (or 35056000 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21330003333212 its reverse (21233330003312), we get a palindrome (42563333336524).

The spelling of 21330003333212 in words is "twenty-one trillion, three hundred thirty billion, three million, three hundred thirty-three thousand, two hundred twelve".