21210002201012 has 12 divisors (see below), whose sum is σ = 37117711910496. Its totient is φ = 10604941655160.

The previous prime is 21210002200993. The next prime is 21210002201027. The reversal of 21210002201012 is 21010220001212.

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, 14053664 + ... + 15489527.

It is an arithmetic number, because the mean of its divisors is an integer number (3093142659208).

Almost surely, 2^{21210002201012} is an apocalyptic number.

It is an amenable number.

21210002201012 is a deficient number, since it is larger than the sum of its proper divisors (15907709709484).

21210002201012 is a wasteful number, since it uses less digits than its factorization.

21210002201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29722678 (or 29722676 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21210002201012 its reverse (21010220001212), we get a palindrome (42220222202224).

The spelling of 21210002201012 in words is "twenty-one trillion, two hundred ten billion, two million, two hundred one thousand, twelve".