1210211222200 has 96 divisors (see below), whose sum is σ = 2821452116400. Its totient is φ = 482759101440.

The previous prime is 1210211222197. The next prime is 1210211222237. The reversal of 1210211222200 is 22221120121.

It is a happy number.

It is a super-2 number, since 2×1210211222200² (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 (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309752647 + ... + 309756553.

Almost surely, 2^{1210211222200} is an apocalyptic number.

1210211222200 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 1210211222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410726058200).

1210211222200 is an abundant number, since it is smaller than the sum of its proper divisors (1611240894200).

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

1210211222200 is a wasteful number, since it uses less digits than its factorization.

1210211222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769 (or 7760 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1210211222200 its reverse (22221120121), we get a palindrome (1232432342321).

The spelling of 1210211222200 in words is "one trillion, two hundred ten billion, two hundred eleven million, two hundred twenty-two thousand, two hundred".