133112222232121 has 4 divisors (see below), whose sum is σ = 145213333344144. Its totient is φ = 121011111120100.

The previous prime is 133112222232113. The next prime is 133112222232191. The reversal of 133112222232121 is 121232222211331.

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 133112222232121 - 2³ = 133112222232113 is a prime.

It is a super-3 number, since 3×133112222232121³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133112222232121.

It is not an unprimeable number, because it can be changed into a prime (133112222232191) 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, 6050555555995 + ... + 6050555556016.

It is an arithmetic number, because the mean of its divisors is an integer number (36303333336036).

Almost surely, 2^{133112222232121} is an apocalyptic number.

133112222232121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133112222232121 is a deficient number, since it is larger than the sum of its proper divisors (12101111112023).

133112222232121 is a wasteful number, since it uses less digits than its factorization.

133112222232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12101111112022.

The product of its digits is 3456, while the sum is 28.

Adding to 133112222232121 its reverse (121232222211331), we get a palindrome (254344444443452).

The spelling of 133112222232121 in words is "one hundred thirty-three trillion, one hundred twelve billion, two hundred twenty-two million, two hundred thirty-two thousand, one hundred twenty-one".