1210120200223 has 4 divisors (see below), whose sum is σ = 1320131127528. Its totient is φ = 1100109272920.

The previous prime is 1210120200197. The next prime is 1210120200253. The reversal of 1210120200223 is 3220020210121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210120200223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210120200197 and 1210120200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210120200253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55005463636 + ... + 55005463657.

It is an arithmetic number, because the mean of its divisors is an integer number (330032781882).

Almost surely, 2^{1210120200223} is an apocalyptic number.

1210120200223 is a deficient number, since it is larger than the sum of its proper divisors (110010927305).

1210120200223 is a wasteful number, since it uses less digits than its factorization.

1210120200223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110010927304.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1210120200223 its reverse (3220020210121), we get a palindrome (4430140410344).

The spelling of 1210120200223 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred thousand, two hundred twenty-three".