1201122142133 has 4 divisors (see below), whose sum is σ = 1201341450540. Its totient is φ = 1200902833728.

The previous prime is 1201122142111. The next prime is 1201122142151. The reversal of 1201122142133 is 3312412211021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 890981190724 + 310140951409 = 943918^2 + 556903^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201122142133 - 2²⁴ = 1201105364917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201122142099 and 1201122142108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201122142433) 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, 109645988 + ... + 109656941.

It is an arithmetic number, because the mean of its divisors is an integer number (300335362635).

Almost surely, 2^{1201122142133} is an apocalyptic number.

It is an amenable number.

1201122142133 is a deficient number, since it is larger than the sum of its proper divisors (219308407).

1201122142133 is an equidigital number, since it uses as much as digits as its factorization.

1201122142133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219308406.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1201122142133 its reverse (3312412211021), we get a palindrome (4513534353154).

The spelling of 1201122142133 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred forty-two thousand, one hundred thirty-three".