561221142411 has 8 divisors (see below), whose sum is σ = 748362418240. Its totient is φ = 374113647432.

The previous prime is 561221142407. The next prime is 561221142421. The reversal of 561221142411 is 114241122165.

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

It is not a de Polignac number, because 561221142411 - 2² = 561221142407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561221142421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8406421 + ... + 8472918.

It is an arithmetic number, because the mean of its divisors is an integer number (93545302280).

Almost surely, 2^561221142411 is an apocalyptic number.

561221142411 is a deficient number, since it is larger than the sum of its proper divisors (187141275829).

561221142411 is a wasteful number, since it uses less digits than its factorization.

561221142411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890425.

The product of its digits is 3840, while the sum is 30.

Adding to 561221142411 its reverse (114241122165), we get a palindrome (675462264576).

The spelling of 561221142411 in words is "five hundred sixty-one billion, two hundred twenty-one million, one hundred forty-two thousand, four hundred eleven".