1201121223223 has 4 divisors (see below), whose sum is σ = 1201355868160. Its totient is φ = 1200886578288.

The previous prime is 1201121223193. The next prime is 1201121223227. The reversal of 1201121223223 is 3223221211021.

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 1201121223223 - 2⁵ = 1201121223191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201121223194 and 1201121223203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201121223227) 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, 117314790 + ... + 117325027.

It is an arithmetic number, because the mean of its divisors is an integer number (300338967040).

Almost surely, 2^{1201121223223} is an apocalyptic number.

1201121223223 is a deficient number, since it is larger than the sum of its proper divisors (234644937).

1201121223223 is an equidigital number, since it uses as much as digits as its factorization.

1201121223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234644936.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1201121223223 its reverse (3223221211021), we get a palindrome (4424342434244).

The spelling of 1201121223223 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty-three".