1201223120233 has 4 divisors (see below), whose sum is σ = 1206008869968. Its totient is φ = 1196437370500.

The previous prime is 1201223120219. The next prime is 1201223120281. The reversal of 1201223120233 is 3320213221021.

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 a de Polignac number, because none of the positive numbers 2^k-1201223120233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201223120833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2392874491 + ... + 2392874992.

It is an arithmetic number, because the mean of its divisors is an integer number (301502217492).

Almost surely, 2^{1201223120233} is an apocalyptic number.

It is an amenable number.

1201223120233 is a deficient number, since it is larger than the sum of its proper divisors (4785749735).

1201223120233 is an equidigital number, since it uses as much as digits as its factorization.

1201223120233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4785749734.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1201223120233 its reverse (3320213221021), we get a palindrome (4521436341254).

The spelling of 1201223120233 in words is "one trillion, two hundred one billion, two hundred twenty-three million, one hundred twenty thousand, two hundred thirty-three".