21422243134 has 8 divisors (see below), whose sum is σ = 32155393320. Its totient is φ = 10703778696.

The previous prime is 21422243113. The next prime is 21422243179. The reversal of 21422243134 is 43134222412.

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

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, 3667789 + ... + 3673624.

It is an arithmetic number, because the mean of its divisors is an integer number (4019424165).

Almost surely, 2^21422243134 is an apocalyptic number.

21422243134 is a deficient number, since it is larger than the sum of its proper divisors (10733150186).

21422243134 is a wasteful number, since it uses less digits than its factorization.

21422243134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7342874.

The product of its digits is 9216, while the sum is 28.

Adding to 21422243134 its reverse (43134222412), we get a palindrome (64556465546).

The spelling of 21422243134 in words is "twenty-one billion, four hundred twenty-two million, two hundred forty-three thousand, one hundred thirty-four".