11220210202111 has 4 divisors (see below), whose sum is σ = 11221137734272. Its totient is φ = 11219282669952.

The previous prime is 11220210202063. The next prime is 11220210202177. The reversal of 11220210202111 is 11120201202211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11220210202111 - 2¹¹ = 11220210200063 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 (11220210202181) 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, 463747935 + ... + 463772128.

It is an arithmetic number, because the mean of its divisors is an integer number (2805284433568).

Almost surely, 2^{11220210202111} is an apocalyptic number.

11220210202111 is a deficient number, since it is larger than the sum of its proper divisors (927532161).

11220210202111 is an equidigital number, since it uses as much as digits as its factorization.

11220210202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927532160.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11220210202111 its reverse (11120201202211), we get a palindrome (22340411404322).

The spelling of 11220210202111 in words is "eleven trillion, two hundred twenty billion, two hundred ten million, two hundred two thousand, one hundred eleven".