11122011213 has 4 divisors (see below), whose sum is σ = 14829348288. Its totient is φ = 7414674140.

The previous prime is 11122011211. The next prime is 11122011227. The reversal of 11122011213 is 31211022111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11122011213 - 2¹ = 11122011211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11122011192 and 11122011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122011211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1853668533 + ... + 1853668538.

It is an arithmetic number, because the mean of its divisors is an integer number (3707337072).

Almost surely, 2^11122011213 is an apocalyptic number.

It is an amenable number.

11122011213 is a deficient number, since it is larger than the sum of its proper divisors (3707337075).

11122011213 is an equidigital number, since it uses as much as digits as its factorization.

11122011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707337074.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11122011213 its reverse (31211022111), we get a palindrome (42333033324).

The spelling of 11122011213 in words is "eleven billion, one hundred twenty-two million, eleven thousand, two hundred thirteen".