21334222242 has 24 divisors (see below), whose sum is σ = 46226834316. Its totient is φ = 7110994176.

The previous prime is 21334222241. The next prime is 21334222271. The reversal of 21334222242 is 24222243312.

21334222242 is a `hidden beast` number, since 2 + 13 + 3 + 422 + 224 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 15712371801 + 5621850441 = 125349^2 + 74979^2 .

It is not an unprimeable number, because it can be changed into a prime (21334222241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 587478 + ... + 622734.

Almost surely, 2^21334222242 is an apocalyptic number.

21334222242 is an abundant number, since it is smaller than the sum of its proper divisors (24892612074).

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

21334222242 is a wasteful number, since it uses less digits than its factorization.

21334222242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68882 (or 68879 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

Adding to 21334222242 its reverse (24222243312), we get a palindrome (45556465554).

The spelling of 21334222242 in words is "twenty-one billion, three hundred thirty-four million, two hundred twenty-two thousand, two hundred forty-two".