1243442412200 has 48 divisors (see below), whose sum is σ = 2958236270880. Its totient is φ = 485810055360.

The previous prime is 1243442412169. The next prime is 1243442412227. The reversal of 1243442412200 is 22142443421.

It is a happy number.

It is a super-2 number, since 2×1243442412200² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72284564 + ... + 72301763.

It is an arithmetic number, because the mean of its divisors is an integer number (61629922310).

Almost surely, 2^{1243442412200} is an apocalyptic number.

1243442412200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243442412200 is an abundant number, since it is smaller than the sum of its proper divisors (1714793858680).

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

1243442412200 is a wasteful number, since it uses less digits than its factorization.

1243442412200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144586386 (or 144586377 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 1243442412200 its reverse (22142443421), we get a palindrome (1265584855621).

The spelling of 1243442412200 in words is "one trillion, two hundred forty-three billion, four hundred forty-two million, four hundred twelve thousand, two hundred".