1210000231200 has 72 divisors (see below), whose sum is σ = 3938550760368. Its totient is φ = 322666727680.

The previous prime is 1210000231183. The next prime is 1210000231207. The reversal of 1210000231200 is 21320000121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1210000231207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 252080982 + ... + 252085781.

It is an arithmetic number, because the mean of its divisors is an integer number (54702093894).

Almost surely, 2^{1210000231200} is an apocalyptic number.

1210000231200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210000231200 is an abundant number, since it is smaller than the sum of its proper divisors (2728550529168).

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

1210000231200 is a wasteful number, since it uses less digits than its factorization.

1210000231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504166786 (or 504166773 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1210000231200 its reverse (21320000121), we get a palindrome (1231320231321).

The spelling of 1210000231200 in words is "one trillion, two hundred ten billion, two hundred thirty-one thousand, two hundred".