1201111012223 has 4 divisors (see below), whose sum is σ = 1201115824248. Its totient is φ = 1201106200200.

The previous prime is 1201111012187. The next prime is 1201111012259. The reversal of 1201111012223 is 3222101111021.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (1201111012187) and next prime (1201111012259).

It is a cyclic number.

It is not a de Polignac number, because 1201111012223 - 2¹² = 1201111008127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111312223) 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, 2009861 + ... + 2538062.

It is an arithmetic number, because the mean of its divisors is an integer number (300278956062).

Almost surely, 2^{1201111012223} is an apocalyptic number.

1201111012223 is a deficient number, since it is larger than the sum of its proper divisors (4812025).

1201111012223 is an equidigital number, since it uses as much as digits as its factorization.

1201111012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812024.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201111012223 its reverse (3222101111021), we get a palindrome (4423212123244).

The spelling of 1201111012223 in words is "one trillion, two hundred one billion, one hundred eleven million, twelve thousand, two hundred twenty-three".