11211121200210 has 16 divisors (see below), whose sum is σ = 26906690880576. Its totient is φ = 2989632320048.

The previous prime is 11211121200179. The next prime is 11211121200289. The reversal of 11211121200210 is 1200212111211.

It is a happy number.

It is a super-2 number, since 2×11211121200210² (a number of 27 digits) contains 22 as substring.

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 11211121200210.

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 7 ways as a sum of consecutive naturals, for example, 186852019974 + ... + 186852020033.

It is an arithmetic number, because the mean of its divisors is an integer number (1681668180036).

Almost surely, 2^{11211121200210} is an apocalyptic number.

11211121200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211121200210 is an abundant number, since it is smaller than the sum of its proper divisors (15695569680366).

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

11211121200210 is a wasteful number, since it uses less digits than its factorization.

11211121200210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373704040017.

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

Adding to 11211121200210 its reverse (1200212111211), we get a palindrome (12411333311421).

The spelling of 11211121200210 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, two hundred thousand, two hundred ten".