1223144200 has 48 divisors (see below), whose sum is σ = 2882800980. Its totient is φ = 482549760.

The previous prime is 1223144179. The next prime is 1223144207. The reversal of 1223144200 is 24413221.

It can be written as a sum of positive squares in 6 ways, for example, as 882446436 + 340697764 = 29706^2 + 18458^2 .

It is not an unprimeable number, because it can be changed into a prime (1223144207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27289 + ... + 56488.

Almost surely, 2^1223144200 is an apocalyptic number.

1223144200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223144200 is an abundant number, since it is smaller than the sum of its proper divisors (1659656780).

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

1223144200 is a wasteful number, since it uses less digits than its factorization.

1223144200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83866 (or 83857 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1223144200 is about 34973.4785230180. The cubic root of 1223144200 is about 1069.4468856425.

Adding to 1223144200 its reverse (24413221), we get a palindrome (1247557421).

The spelling of 1223144200 in words is "one billion, two hundred twenty-three million, one hundred forty-four thousand, two hundred".