11201212011210 has 32 divisors (see below), whose sum is σ = 28950824891520. Its totient is φ = 2757221418048.

The previous prime is 11201212011203. The next prime is 11201212011229. The reversal of 11201212011210 is 1211021210211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11201212011210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14360527830 + ... + 14360528609.

It is an arithmetic number, because the mean of its divisors is an integer number (904713277860).

Almost surely, 2^{11201212011210} is an apocalyptic number.

11201212011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11201212011210 is an abundant number, since it is smaller than the sum of its proper divisors (17749612880310).

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

11201212011210 is a wasteful number, since it uses less digits than its factorization.

11201212011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28721056462.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11201212011210 its reverse (1211021210211), we get a palindrome (12412233221421).

The spelling of 11201212011210 in words is "eleven trillion, two hundred one billion, two hundred twelve million, eleven thousand, two hundred ten".