122223561 has 8 divisors (see below), whose sum is σ = 171541920. Its totient is φ = 77193792.

The previous prime is 122223551. The next prime is 122223571. The reversal of 122223561 is 165322221.

It is an interprime number because it is at equal distance from previous prime (122223551) and next prime (122223571).

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

It is not a de Polignac number, because 122223561 - 2¹¹ = 122221513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122223511) 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, 1072080 + ... + 1072193.

It is an arithmetic number, because the mean of its divisors is an integer number (21442740).

Almost surely, 2^122223561 is an apocalyptic number.

It is an amenable number.

122223561 is a deficient number, since it is larger than the sum of its proper divisors (49318359).

122223561 is a wasteful number, since it uses less digits than its factorization.

122223561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144295.

The product of its digits is 1440, while the sum is 24.

The square root of 122223561 is about 11055.4765161887. The cubic root of 122223561 is about 496.2703296263.

Adding to 122223561 its reverse (165322221), we get a palindrome (287545782).

The spelling of 122223561 in words is "one hundred twenty-two million, two hundred twenty-three thousand, five hundred sixty-one".