21334210242213 has 32 divisors (see below), whose sum is σ = 31866033733632. Its totient is φ = 12585976603200.

The previous prime is 21334210242209. The next prime is 21334210242227. The reversal of 21334210242213 is 31224201243312.

It is a happy number.

It is not a de Polignac number, because 21334210242213 - 2² = 21334210242209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334210249213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47801293 + ... + 48245538.

It is an arithmetic number, because the mean of its divisors is an integer number (995813554176).

Almost surely, 2^{21334210242213} is an apocalyptic number.

It is an amenable number.

21334210242213 is a deficient number, since it is larger than the sum of its proper divisors (10531823491419).

21334210242213 is a wasteful number, since it uses less digits than its factorization.

21334210242213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96047025.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 21334210242213 its reverse (31224201243312), we get a palindrome (52558411485525).

The spelling of 21334210242213 in words is "twenty-one trillion, three hundred thirty-four billion, two hundred ten million, two hundred forty-two thousand, two hundred thirteen".