143212221133 has 8 divisors (see below), whose sum is σ = 143501311800. Its totient is φ = 142923399168.

The previous prime is 143212221109. The next prime is 143212221143. The reversal of 143212221133 is 331122212341.

It can be written as a sum of positive squares in 4 ways, for example, as 1958770564 + 141253450569 = 44258^2 + 375837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143212221133 - 2⁹ = 143212220621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143212221098 and 143212221107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143212221143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017435 + ... + 1149607.

It is an arithmetic number, because the mean of its divisors is an integer number (17937663975).

Almost surely, 2^143212221133 is an apocalyptic number.

It is an amenable number.

143212221133 is a deficient number, since it is larger than the sum of its proper divisors (289090667).

143212221133 is a wasteful number, since it uses less digits than its factorization.

143212221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134351.

The product of its digits is 1728, while the sum is 25.

Adding to 143212221133 its reverse (331122212341), we get a palindrome (474334433474).

The spelling of 143212221133 in words is "one hundred forty-three billion, two hundred twelve million, two hundred twenty-one thousand, one hundred thirty-three".