22561012342 has 8 divisors (see below), whose sum is σ = 36918020232. Its totient is φ = 10255005600.

The previous prime is 22561012297. The next prime is 22561012351. The reversal of 22561012342 is 24321016522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22561012342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 512750259 + ... + 512750302.

It is an arithmetic number, because the mean of its divisors is an integer number (4614752529).

Almost surely, 2^22561012342 is an apocalyptic number.

22561012342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22561012342 is a deficient number, since it is larger than the sum of its proper divisors (14357007890).

22561012342 is a wasteful number, since it uses less digits than its factorization.

22561012342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025500574.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 22561012342 its reverse (24321016522), we get a palindrome (46882028864).

The spelling of 22561012342 in words is "twenty-two billion, five hundred sixty-one million, twelve thousand, three hundred forty-two".