4221522342 has 24 divisors (see below), whose sum is σ = 9153607320. Its totient is φ = 1406100960.

The previous prime is 4221522323. The next prime is 4221522343. The reversal of 4221522342 is 2432251224.

4221522342 is a `hidden beast` number, since 422 + 1 + 5 + 2 + 234 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221522343) 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, 64992 + ... + 112547.

It is an arithmetic number, because the mean of its divisors is an integer number (381400305).

Almost surely, 2^4221522342 is an apocalyptic number.

4221522342 is an abundant number, since it is smaller than the sum of its proper divisors (4932084978).

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

4221522342 is a wasteful number, since it uses less digits than its factorization.

4221522342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178868 (or 178865 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 4221522342 is about 64973.2432775216. The cubic root of 4221522342 is about 1616.1798854890.

Adding to 4221522342 its reverse (2432251224), we get a palindrome (6653773566).

The spelling of 4221522342 in words is "four billion, two hundred twenty-one million, five hundred twenty-two thousand, three hundred forty-two".