1223514220 has 24 divisors (see below), whose sum is σ = 2578942800. Its totient is φ = 487584192.

The previous prime is 1223514203. The next prime is 1223514221. The reversal of 1223514220 is 224153221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1223514191 and 1223514200.

It is not an unprimeable number, because it can be changed into a prime (1223514221) 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, 108330 + ... + 119089.

It is an arithmetic number, because the mean of its divisors is an integer number (107455950).

Almost surely, 2^1223514220 is an apocalyptic number.

1223514220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223514220 is an abundant number, since it is smaller than the sum of its proper divisors (1355428580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223514220 is a wasteful number, since it uses less digits than its factorization.

1223514220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227697 (or 227695 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1223514220 is about 34978.7681315395. The cubic root of 1223514220 is about 1069.5547161664.

Adding to 1223514220 its reverse (224153221), we get a palindrome (1447667441).

The spelling of 1223514220 in words is "one billion, two hundred twenty-three million, five hundred fourteen thousand, two hundred twenty".