1201121233201 has 4 divisors (see below), whose sum is σ = 1203167436912. Its totient is φ = 1199075029492.

The previous prime is 1201121233183. The next prime is 1201121233219. The reversal of 1201121233201 is 1023321211021.

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 an interprime number because it is at equal distance from previous prime (1201121233183) and next prime (1201121233219).

It is a cyclic number.

It is not a de Polignac number, because 1201121233201 - 2³¹ = 1198973749553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201121233261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023100975 + ... + 1023102148.

It is an arithmetic number, because the mean of its divisors is an integer number (300791859228).

Almost surely, 2^{1201121233201} is an apocalyptic number.

It is an amenable number.

1201121233201 is a deficient number, since it is larger than the sum of its proper divisors (2046203711).

1201121233201 is an equidigital number, since it uses as much as digits as its factorization.

1201121233201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046203710.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1201121233201 its reverse (1023321211021), we get a palindrome (2224442444222).

The spelling of 1201121233201 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred thirty-three thousand, two hundred one".