11212202211121 has 32 divisors (see below), whose sum is σ = 11483730720000. Its totient is φ = 10945033279488.

The previous prime is 11212202211097. The next prime is 11212202211127. The reversal of 11212202211121 is 12111220221211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11212202211121 - 2¹⁷ = 11212202080049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212202211127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3943791126 + ... + 3943793968.

It is an arithmetic number, because the mean of its divisors is an integer number (358866585000).

Almost surely, 2^{11212202211121} is an apocalyptic number.

It is an amenable number.

11212202211121 is a deficient number, since it is larger than the sum of its proper divisors (271528508879).

11212202211121 is a wasteful number, since it uses less digits than its factorization.

11212202211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11212202211121 its reverse (12111220221211), we get a palindrome (23323422432332).

The spelling of 11212202211121 in words is "eleven trillion, two hundred twelve billion, two hundred two million, two hundred eleven thousand, one hundred twenty-one".