21213601024046 has 16 divisors (see below), whose sum is σ = 32257141436688. Its totient is φ = 10461228148800.

The previous prime is 21213601024037. The next prime is 21213601024079. The reversal of 21213601024046 is 64042010631212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3755636 + ... + 7518776.

It is an arithmetic number, because the mean of its divisors is an integer number (2016071339793).

Almost surely, 2^{21213601024046} is an apocalyptic number.

21213601024046 is a deficient number, since it is larger than the sum of its proper divisors (11043540412642).

21213601024046 is a wasteful number, since it uses less digits than its factorization.

21213601024046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801827.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 21213601024046 its reverse (64042010631212), we get a palindrome (85255611655258).

The spelling of 21213601024046 in words is "twenty-one trillion, two hundred thirteen billion, six hundred one million, twenty-four thousand, forty-six".