21210003133112 has 16 divisors (see below), whose sum is σ = 39988472760600. Its totient is φ = 10546410396960.

The previous prime is 21210003133103. The next prime is 21210003133169. The reversal of 21210003133112 is 21133130001212.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7323894662 + ... + 7323897557.

Almost surely, 2^{21210003133112} is an apocalyptic number.

It is an amenable number.

21210003133112 is a deficient number, since it is larger than the sum of its proper divisors (18778469627488).

21210003133112 is a wasteful number, since it uses less digits than its factorization.

21210003133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14647792406 (or 14647792402 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21210003133112 its reverse (21133130001212), we get a palindrome (42343133134324).

The spelling of 21210003133112 in words is "twenty-one trillion, two hundred ten billion, three million, one hundred thirty-three thousand, one hundred twelve".