11210212121211 has 24 divisors (see below), whose sum is σ = 16267189484000. Its totient is φ = 7439031747072.

The previous prime is 11210212121137. The next prime is 11210212121221. The reversal of 11210212121211 is 11212121201211.

It is a happy number.

11210212121211 is a `hidden beast` number, since 1 + 121 + 0 + 212 + 121 + 211 = 666.

It is not a de Polignac number, because 11210212121211 - 2²⁵ = 11210178566779 is a prime.

It is a super-2 number, since 2×11210212121211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11210212121221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7851210 + ... + 9168528.

Almost surely, 2^{11210212121211} is an apocalyptic number.

11210212121211 is a deficient number, since it is larger than the sum of its proper divisors (5056977362789).

11210212121211 is a wasteful number, since it uses less digits than its factorization.

11210212121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321683 (or 1321680 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11210212121211 its reverse (11212121201211), we get a palindrome (22422333322422).

The spelling of 11210212121211 in words is "eleven trillion, two hundred ten billion, two hundred twelve million, one hundred twenty-one thousand, two hundred eleven".