122231530 has 16 divisors (see below), whose sum is σ = 232959240. Its totient is φ = 46016512.

The previous prime is 122231521. The next prime is 122231561. The reversal of 122231530 is 35132221.

It can be written as a sum of positive squares in 4 ways, for example, as 122124601 + 106929 = 11051^2 + 327^2 .

It is a super-2 number, since 2×122231530² = 29881093852281800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122231498 and 122231507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359335 + ... + 359674.

Almost surely, 2^122231530 is an apocalyptic number.

122231530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122231530 is a deficient number, since it is larger than the sum of its proper divisors (110727710).

122231530 is a wasteful number, since it uses less digits than its factorization.

122231530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719033.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 122231530 is about 11055.8369199261. The cubic root of 122231530 is about 496.2811150326.

Adding to 122231530 its reverse (35132221), we get a palindrome (157363751).

The spelling of 122231530 in words is "one hundred twenty-two million, two hundred thirty-one thousand, five hundred thirty".