11011212012211 has 16 divisors (see below), whose sum is σ = 11605590420480. Its totient is φ = 10426503023200.

The previous prime is 11011212012197. The next prime is 11011212012223. The reversal of 11011212012211 is 11221021211011.

It is not a de Polignac number, because 11011212012211 - 2⁵ = 11011212012179 is a prime.

It is a super-2 number, since 2×11011212012211² (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 (11011212013211) by changing a digit.

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, 14170530 + ... + 14927368.

It is an arithmetic number, because the mean of its divisors is an integer number (725349401280).

Almost surely, 2^{11011212012211} is an apocalyptic number.

11011212012211 is a deficient number, since it is larger than the sum of its proper divisors (594378408269).

11011212012211 is a wasteful number, since it uses less digits than its factorization.

11011212012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763226.

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

Adding to 11011212012211 its reverse (11221021211011), we get a palindrome (22232233223222).

The spelling of 11011212012211 in words is "eleven trillion, eleven billion, two hundred twelve million, twelve thousand, two hundred eleven".