11220012212111 has 8 divisors (see below), whose sum is σ = 11241488292384. Its totient is φ = 11198545459200.

The previous prime is 11220012212029. The next prime is 11220012212131. The reversal of 11220012212111 is 11121221002211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220012212111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11220012212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220012212131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78671 + ... + 4737743.

It is an arithmetic number, because the mean of its divisors is an integer number (1405186036548).

Almost surely, 2^{11220012212111} is an apocalyptic number.

11220012212111 is a deficient number, since it is larger than the sum of its proper divisors (21476080273).

11220012212111 is an equidigital number, since it uses as much as digits as its factorization.

11220012212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663681.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11220012212111 its reverse (11121221002211), we get a palindrome (22341233214322).

The spelling of 11220012212111 in words is "eleven trillion, two hundred twenty billion, twelve million, two hundred twelve thousand, one hundred eleven".