21213010000002 has 8 divisors (see below), whose sum is σ = 42426020000016. Its totient is φ = 7071003333332.

The previous prime is 21213009999997. The next prime is 21213010000009. The reversal of 21213010000002 is 20000001031212.

It is a sphenic number, since it is the product of 3 distinct primes.

21213010000002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21213010000009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1767750833328 + ... + 1767750833339.

It is an arithmetic number, because the mean of its divisors is an integer number (5303252500002).

Almost surely, 2^{21213010000002} is an apocalyptic number.

21213010000002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21213010000002 is a wasteful number, since it uses less digits than its factorization.

21213010000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535501666672.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 21213010000002 its reverse (20000001031212), we get a palindrome (41213011031214).

The spelling of 21213010000002 in words is "twenty-one trillion, two hundred thirteen billion, ten million, two", and thus it is an aban number.