561321122 has 8 divisors (see below), whose sum is σ = 842116176. Its totient is φ = 280615732.

The previous prime is 561321121. The next prime is 561321127. The reversal of 561321122 is 221123165.

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

It is not an unprimeable number, because it can be changed into a prime (561321121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3608 + ... + 33699.

It is an arithmetic number, because the mean of its divisors is an integer number (105264522).

Almost surely, 2^561321122 is an apocalyptic number.

561321122 is a deficient number, since it is larger than the sum of its proper divisors (280795054).

561321122 is a wasteful number, since it uses less digits than its factorization.

561321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44832.

The product of its digits is 720, while the sum is 23.

The square root of 561321122 is about 23692.2164855887. The cubic root of 561321122 is about 824.9047319438.

Adding to 561321122 its reverse (221123165), we get a palindrome (782444287).

The spelling of 561321122 in words is "five hundred sixty-one million, three hundred twenty-one thousand, one hundred twenty-two".