11213011021121 has 16 divisors (see below), whose sum is σ = 13822091896704. Its totient is φ = 8858035286784.

The previous prime is 11213011021117. The next prime is 11213011021129. The reversal of 11213011021121 is 12112011031211.

11213011021121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11213011021121 - 2² = 11213011021117 is a prime.

It is a super-2 number, since 2×11213011021121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11213011021121.

It is not an unprimeable number, because it can be changed into a prime (11213011021129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95757896 + ... + 95874921.

It is an arithmetic number, because the mean of its divisors is an integer number (863880743544).

Almost surely, 2^{11213011021121} is an apocalyptic number.

It is an amenable number.

11213011021121 is a deficient number, since it is larger than the sum of its proper divisors (2609080875583).

11213011021121 is a wasteful number, since it uses less digits than its factorization.

11213011021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191633480.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11213011021121 its reverse (12112011031211), we get a palindrome (23325022052332).

The spelling of 11213011021121 in words is "eleven trillion, two hundred thirteen billion, eleven million, twenty-one thousand, one hundred twenty-one".