11211110213 has 4 divisors (see below), whose sum is σ = 11285356128. Its totient is φ = 11136864300.

The previous prime is 11211110161. The next prime is 11211110263. The reversal of 11211110213 is 31201111211.

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 11211110213 - 2²⁴ = 11194332997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211110263) 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, 37122731 + ... + 37123032.

It is an arithmetic number, because the mean of its divisors is an integer number (2821339032).

Almost surely, 2^11211110213 is an apocalyptic number.

It is an amenable number.

11211110213 is a deficient number, since it is larger than the sum of its proper divisors (74245915).

11211110213 is an equidigital number, since it uses as much as digits as its factorization.

11211110213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74245914.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11211110213 its reverse (31201111211), we get a palindrome (42412221424).

The spelling of 11211110213 in words is "eleven billion, two hundred eleven million, one hundred ten thousand, two hundred thirteen".