1201211301233 has 4 divisors (see below), whose sum is σ = 1201215136368. Its totient is φ = 1201207466100.

The previous prime is 1201211301209. The next prime is 1201211301239. The reversal of 1201211301233 is 3321031121021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201211301233 - 2¹² = 1201211297137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201211301239) 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, 1401443 + ... + 2089608.

It is an arithmetic number, because the mean of its divisors is an integer number (300303784092).

Almost surely, 2^{1201211301233} is an apocalyptic number.

It is an amenable number.

1201211301233 is a deficient number, since it is larger than the sum of its proper divisors (3835135).

1201211301233 is an equidigital number, since it uses as much as digits as its factorization.

1201211301233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3835134.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1201211301233 its reverse (3321031121021), we get a palindrome (4522242422254).

The spelling of 1201211301233 in words is "one trillion, two hundred one billion, two hundred eleven million, three hundred one thousand, two hundred thirty-three".