1123220210201 has 4 divisors (see below), whose sum is σ = 1123251042612. Its totient is φ = 1123189377792.

The previous prime is 1123220210197. The next prime is 1123220210213. The reversal of 1123220210201 is 1020120223211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 473344000000 + 649876210201 = 688000^2 + 806149^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123220210201 - 2² = 1123220210197 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 1123220210201.

It is not an unprimeable number, because it can be changed into a prime (1123220210261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15361496 + ... + 15434441.

It is an arithmetic number, because the mean of its divisors is an integer number (280812760653).

Almost surely, 2^{1123220210201} is an apocalyptic number.

It is an amenable number.

1123220210201 is a deficient number, since it is larger than the sum of its proper divisors (30832411).

1123220210201 is an equidigital number, since it uses as much as digits as its factorization.

1123220210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30832410.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1123220210201 its reverse (1020120223211), we get a palindrome (2143340433412).

The spelling of 1123220210201 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, two hundred ten thousand, two hundred one".