1223151200 has 36 divisors (see below), whose sum is σ = 2986019820. Its totient is φ = 489260160.

The previous prime is 1223151089. The next prime is 1223151227. The reversal of 1223151200 is 21513221.

It is a happy number.

It is a super-2 number, since 2×1223151200² = 2992197716122880000, which contains 22 as substring.

It is a congruent number.

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, 763670 + ... + 765269.

It is an arithmetic number, because the mean of its divisors is an integer number (82944995).

Almost surely, 2^1223151200 is an apocalyptic number.

1223151200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223151200 is an abundant number, since it is smaller than the sum of its proper divisors (1762868620).

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

1223151200 is a wasteful number, since it uses less digits than its factorization.

1223151200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528959 (or 1528946 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1223151200 is about 34973.5785987079. The cubic root of 1223151200 is about 1069.4489257710.

Adding to 1223151200 its reverse (21513221), we get a palindrome (1244664421).

The spelling of 1223151200 in words is "one billion, two hundred twenty-three million, one hundred fifty-one thousand, two hundred".