21330002212 has 12 divisors (see below), whose sum is σ = 37800004480. Its totient is φ = 10530000936.

The previous prime is 21330002207. The next prime is 21330002279. The reversal of 21330002212 is 21220003312.

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, 33749688 + ... + 33750319.

Almost surely, 2^21330002212 is an apocalyptic number.

It is an amenable number.

21330002212 is a deficient number, since it is larger than the sum of its proper divisors (16470002268).

21330002212 is a wasteful number, since it uses less digits than its factorization.

21330002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67500090 (or 67500088 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21330002212 its reverse (21220003312), we get a palindrome (42550005524).

The spelling of 21330002212 in words is "twenty-one billion, three hundred thirty million, two thousand, two hundred twelve".