11211121210210 has 8 divisors (see below), whose sum is σ = 20180018178396. Its totient is φ = 4484448484080.

The previous prime is 11211121210127. The next prime is 11211121210241. The reversal of 11211121210210 is 1201212111211.

It can be written as a sum of positive squares in 2 ways, for example, as 11051256381649 + 159864828561 = 3324343^2 + 399831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560556060501 + ... + 560556060520.

Almost surely, 2^{11211121210210} is an apocalyptic number.

11211121210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211121210210 is a deficient number, since it is larger than the sum of its proper divisors (8968896968186).

11211121210210 is a wasteful number, since it uses less digits than its factorization.

11211121210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121112121028.

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

Adding to 11211121210210 its reverse (1201212111211), we get a palindrome (12412333321421).

The spelling of 11211121210210 in words is "eleven trillion, two hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, two hundred ten".