1211200010202 has 192 divisors, whose sum is σ = 3149224323840. Its totient is φ = 302371688448.

The previous prime is 1211200010173. The next prime is 1211200010227. The reversal of 1211200010202 is 2020100021121.

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 95 ways as a sum of consecutive naturals, for example, 372331608 + ... + 372334860.

It is an arithmetic number, because the mean of its divisors is an integer number (16402210020).

Almost surely, 2^{1211200010202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211200010202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1574612161920).

1211200010202 is an abundant number, since it is smaller than the sum of its proper divisors (1938024313638).

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

1211200010202 is a wasteful number, since it uses less digits than its factorization.

1211200010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205 (or 5186 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1211200010202 its reverse (2020100021121), we get a palindrome (3231300031323).

The spelling of 1211200010202 in words is "one trillion, two hundred eleven billion, two hundred million, ten thousand, two hundred two".