12210201220100 has 36 divisors (see below), whose sum is σ = 28534301008164. Its totient is φ = 4508381988480.

The previous prime is 12210201220033. The next prime is 12210201220163. The reversal of 12210201220100 is 102210201221.

It can be written as a sum of positive squares in 6 ways, for example, as 5347184510404 + 6863016709696 = 2312398^2 + 2619736^2 .

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 11 ways as a sum of consecutive naturals, for example, 4696229939 + ... + 4696232538.

It is an arithmetic number, because the mean of its divisors is an integer number (792619472449).

Almost surely, 2^{12210201220100} is an apocalyptic number.

12210201220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210201220100 is an abundant number, since it is smaller than the sum of its proper divisors (16324099788064).

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

12210201220100 is a wasteful number, since it uses less digits than its factorization.

12210201220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9392462504 (or 9392462497 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12210201220100 its reverse (102210201221), we get a palindrome (12312411421321).

The spelling of 12210201220100 in words is "twelve trillion, two hundred ten billion, two hundred one million, two hundred twenty thousand, one hundred".