2201122120123 has 4 divisors (see below), whose sum is σ = 2201144511640. Its totient is φ = 2201099728608.

The previous prime is 2201122120111. The next prime is 2201122120177. The reversal of 2201122120123 is 3210212211022.

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 2201122120123 - 2⁹ = 2201122119611 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 2201122120123.

It is not an unprimeable number, because it can be changed into a prime (2201122120193) 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, 11047653 + ... + 11245126.

It is an arithmetic number, because the mean of its divisors is an integer number (550286127910).

Almost surely, 2^{2201122120123} is an apocalyptic number.

2201122120123 is a deficient number, since it is larger than the sum of its proper divisors (22391517).

2201122120123 is an equidigital number, since it uses as much as digits as its factorization.

2201122120123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22391516.

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

Adding to 2201122120123 its reverse (3210212211022), we get a palindrome (5411334331145).

The spelling of 2201122120123 in words is "two trillion, two hundred one billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-three".