22123434442 has 32 divisors (see below), whose sum is σ = 35656951680. Its totient is φ = 10269050880.

The previous prime is 22123434427. The next prime is 22123434493. The reversal of 22123434442 is 24443432122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333609 + ... + 394387.

It is an arithmetic number, because the mean of its divisors is an integer number (1114279740).

Almost surely, 2^22123434442 is an apocalyptic number.

22123434442 is a deficient number, since it is larger than the sum of its proper divisors (13533517238).

22123434442 is a wasteful number, since it uses less digits than its factorization.

22123434442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61038.

The product of its digits is 36864, while the sum is 31.

Adding to 22123434442 its reverse (24443432122), we get a palindrome (46566866564).

The spelling of 22123434442 in words is "twenty-two billion, one hundred twenty-three million, four hundred thirty-four thousand, four hundred forty-two".