122220424 has 16 divisors (see below), whose sum is σ = 229293900. Its totient is φ = 61075392.

The previous prime is 122220421. The next prime is 122220437. The reversal of 122220424 is 424022221.

It can be written as a sum of positive squares in 2 ways, for example, as 118417924 + 3802500 = 10882^2 + 1950^2 .

It is not an unprimeable number, because it can be changed into a prime (122220421) 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, 16362 + ... + 22630.

Almost surely, 2^122220424 is an apocalyptic number.

It is an amenable number.

122220424 is a deficient number, since it is larger than the sum of its proper divisors (107073476).

122220424 is a wasteful number, since it uses less digits than its factorization.

122220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712 (or 8708 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 122220424 is about 11055.3346398922. The cubic root of 122220424 is about 496.2660838182.

Adding to 122220424 its reverse (424022221), we get a palindrome (546242645).

The spelling of 122220424 in words is "one hundred twenty-two million, two hundred twenty thousand, four hundred twenty-four".