1223505200 has 30 divisors (see below), whose sum is σ = 2939472204. Its totient is φ = 489401920.

The previous prime is 1223505167. The next prime is 1223505277. The reversal of 1223505200 is 25053221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1528982 + ... + 1529781.

Almost surely, 2^1223505200 is an apocalyptic number.

1223505200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223505200 is an abundant number, since it is smaller than the sum of its proper divisors (1715967004).

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

1223505200 is a wasteful number, since it uses less digits than its factorization.

1223505200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058781 (or 3058770 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1223505200 is about 34978.6391959436. The cubic root of 1223505200 is about 1069.5520878338.

Adding to 1223505200 its reverse (25053221), we get a palindrome (1248558421).

The spelling of 1223505200 in words is "one billion, two hundred twenty-three million, five hundred five thousand, two hundred".