1210012211200 has 288 divisors, whose sum is σ = 3237615435600. Its totient is φ = 445842063360.

The previous prime is 1210012211189. The next prime is 1210012211207. The reversal of 1210012211200 is 21122100121.

It is a super-2 number, since 2×1210012211200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210012211207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374731186 + ... + 374734414.

Almost surely, 2^{1210012211200} is an apocalyptic number.

1210012211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210012211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1618807717800).

1210012211200 is an abundant number, since it is smaller than the sum of its proper divisors (2027603224400).

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

1210012211200 is a wasteful number, since it uses less digits than its factorization.

1210012211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837 (or 3812 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1210012211200 its reverse (21122100121), we get a palindrome (1231134311321).

The spelling of 1210012211200 in words is "one trillion, two hundred ten billion, twelve million, two hundred eleven thousand, two hundred".