22002343522 has 4 divisors (see below), whose sum is σ = 33003515286. Its totient is φ = 11001171760.

The previous prime is 22002343459. The next prime is 22002343523. The reversal of 22002343522 is 22534320022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12146023681 + 9856319841 = 110209^2 + 99279^2 .

It is not an unprimeable number, because it can be changed into a prime (22002343523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500585879 + ... + 5500585882.

Almost surely, 2^22002343522 is an apocalyptic number.

22002343522 is a deficient number, since it is larger than the sum of its proper divisors (11001171764).

22002343522 is a wasteful number, since it uses less digits than its factorization.

22002343522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001171763.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 22002343522 its reverse (22534320022), we get a palindrome (44536663544).

The spelling of 22002343522 in words is "twenty-two billion, two million, three hundred forty-three thousand, five hundred twenty-two".