1201332230121 has 4 divisors (see below), whose sum is σ = 1601776306832. Its totient is φ = 800888153412.

The previous prime is 1201332230051. The next prime is 1201332230191. The reversal of 1201332230121 is 1210322331021.

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 (1201332230051) and next prime (1201332230191).

It is not a de Polignac number, because 1201332230121 - 2²¹ = 1201330132969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201332230191) 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, 200222038351 + ... + 200222038356.

It is an arithmetic number, because the mean of its divisors is an integer number (400444076708).

Almost surely, 2^{1201332230121} is an apocalyptic number.

It is an amenable number.

1201332230121 is a deficient number, since it is larger than the sum of its proper divisors (400444076711).

1201332230121 is an equidigital number, since it uses as much as digits as its factorization.

1201332230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400444076710.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1201332230121 its reverse (1210322331021), we get a palindrome (2411654561142).

The spelling of 1201332230121 in words is "one trillion, two hundred one billion, three hundred thirty-two million, two hundred thirty thousand, one hundred twenty-one".