122405530 has 32 divisors (see below), whose sum is σ = 241315200. Its totient is φ = 44427072.

The previous prime is 122405519. The next prime is 122405533. The reversal of 122405530 is 35504221.

It is a super-2 number, since 2×122405530² = 29966227549161800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122405533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310 + ... + 15649.

It is an arithmetic number, because the mean of its divisors is an integer number (7541100).

Almost surely, 2^122405530 is an apocalyptic number.

122405530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122405530 is a deficient number, since it is larger than the sum of its proper divisors (118909670).

122405530 is a wasteful number, since it uses less digits than its factorization.

122405530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16038.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 122405530 is about 11063.7032678936. The cubic root of 122405530 is about 496.5164933924.

Adding to 122405530 its reverse (35504221), we get a palindrome (157909751).

The spelling of 122405530 in words is "one hundred twenty-two million, four hundred five thousand, five hundred thirty".