21424223134414 has 8 divisors (see below), whose sum is σ = 32155249559400. Its totient is φ = 10705806614616.

The previous prime is 21424223134399. The next prime is 21424223134469. The reversal of 21424223134414 is 41443132242412.

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

It is a super-2 number, since 2×21424223134414² (a number of 27 digits) contains 22 as substring.

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, 3152472049 + ... + 3152478844.

It is an arithmetic number, because the mean of its divisors is an integer number (4019406194925).

Almost surely, 2^{21424223134414} is an apocalyptic number.

21424223134414 is a deficient number, since it is larger than the sum of its proper divisors (10731026424986).

21424223134414 is a wasteful number, since it uses less digits than its factorization.

21424223134414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304952594.

The product of its digits is 147456, while the sum is 37.

Adding to 21424223134414 its reverse (41443132242412), we get a palindrome (62867355376826).

The spelling of 21424223134414 in words is "twenty-one trillion, four hundred twenty-four billion, two hundred twenty-three million, one hundred thirty-four thousand, four hundred fourteen".