11220111022123 has 8 divisors (see below), whose sum is σ = 11239288738128. Its totient is φ = 11200934171904.

The previous prime is 11220111022097. The next prime is 11220111022139. The reversal of 11220111022123 is 32122011102211.

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

It is a cyclic number.

It is not a de Polignac number, because 11220111022123 - 2²⁹ = 11219574151211 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 11220111022123.

It is not an unprimeable number, because it can be changed into a prime (11220111022193) 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, 29112840 + ... + 29495722.

It is an arithmetic number, because the mean of its divisors is an integer number (1404911092266).

Almost surely, 2^{11220111022123} is an apocalyptic number.

11220111022123 is a deficient number, since it is larger than the sum of its proper divisors (19177716005).

11220111022123 is an equidigital number, since it uses as much as digits as its factorization.

11220111022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432893.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11220111022123 its reverse (32122011102211), we get a palindrome (43342122124334).

The spelling of 11220111022123 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, twenty-two thousand, one hundred twenty-three".