1210212111200 has 36 divisors (see below), whose sum is σ = 2954430318420. Its totient is φ = 484084844160.

The previous prime is 1210212111167. The next prime is 1210212111233. The reversal of 1210212111200 is 21112120121.

It is an interprime number because it is at equal distance from previous prime (1210212111167) and next prime (1210212111233).

It is a super-2 number, since 2×1210212111200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 756381770 + ... + 756383369.

It is an arithmetic number, because the mean of its divisors is an integer number (82067508845).

Almost surely, 2^{1210212111200} is an apocalyptic number.

1210212111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210212111200 is an abundant number, since it is smaller than the sum of its proper divisors (1744218207220).

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

1210212111200 is a wasteful number, since it uses less digits than its factorization.

1210212111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512765159 (or 1512765146 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1210212111200 its reverse (21112120121), we get a palindrome (1231324231321).

The spelling of 1210212111200 in words is "one trillion, two hundred ten billion, two hundred twelve million, one hundred eleven thousand, two hundred".