22120135042 has 4 divisors (see below), whose sum is σ = 33180202566. Its totient is φ = 11060067520.

The previous prime is 22120134997. The next prime is 22120135057. The reversal of 22120135042 is 24053102122.

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., 11223071721 + 10897063321 = 105939^2 + 104389^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530033759 + ... + 5530033762.

Almost surely, 2^22120135042 is an apocalyptic number.

22120135042 is a deficient number, since it is larger than the sum of its proper divisors (11060067524).

22120135042 is a wasteful number, since it uses less digits than its factorization.

22120135042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060067523.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 22120135042 its reverse (24053102122), we get a palindrome (46173237164).

The spelling of 22120135042 in words is "twenty-two billion, one hundred twenty million, one hundred thirty-five thousand, forty-two".