122224521 has 8 divisors (see below), whose sum is σ = 163040544. Its totient is φ = 81445760.

The previous prime is 122224517. The next prime is 122224573. The reversal of 122224521 is 125422221.

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

It is a cyclic number.

It is not a de Polignac number, because 122224521 - 2² = 122224517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122224591) 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, 456 + ... + 15641.

It is an arithmetic number, because the mean of its divisors is an integer number (20380068).

Almost surely, 2^122224521 is an apocalyptic number.

It is an amenable number.

122224521 is a deficient number, since it is larger than the sum of its proper divisors (40816023).

122224521 is a wasteful number, since it uses less digits than its factorization.

122224521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18631.

The product of its digits is 640, while the sum is 21.

The square root of 122224521 is about 11055.5199334993. The cubic root of 122224521 is about 496.2716289346.

Adding to 122224521 its reverse (125422221), we get a palindrome (247646742).

It can be divided in two parts, 1222245 and 21, that added together give a triangular number (1222266 = T₁₅₆₃).

The spelling of 122224521 in words is "one hundred twenty-two million, two hundred twenty-four thousand, five hundred twenty-one".