11222120020123 has 4 divisors (see below), whose sum is σ = 11223429036048. Its totient is φ = 11220811004200.

The previous prime is 11222120020103. The next prime is 11222120020169. The reversal of 11222120020123 is 32102002122211.

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 11222120020123 - 2²¹ = 11222117922971 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 11222120020123.

It is not an unprimeable number, because it can be changed into a prime (11222120020103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654495103 + ... + 654512248.

It is an arithmetic number, because the mean of its divisors is an integer number (2805857259012).

Almost surely, 2^{11222120020123} is an apocalyptic number.

11222120020123 is a deficient number, since it is larger than the sum of its proper divisors (1309015925).

11222120020123 is an equidigital number, since it uses as much as digits as its factorization.

11222120020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309015924.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11222120020123 its reverse (32102002122211), we get a palindrome (43324122142334).

The spelling of 11222120020123 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty million, twenty thousand, one hundred twenty-three".