143133020221 has 2 divisors, whose sum is σ = 143133020222. Its totient is φ = 143133020220.

The previous prime is 143133020203. The next prime is 143133020243. The reversal of 143133020221 is 122020331341.

It is an a-pointer prime, because the next prime (143133020243) can be obtained adding 143133020221 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88663995225 + 54469024996 = 297765^2 + 233386^2 .

It is a cyclic number.

It is not a de Polignac number, because 143133020221 - 2¹¹ = 143133018173 is a prime.

It is a super-2 number, since 2×143133020221² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143133020192 and 143133020201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143133020291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71566510110 + 71566510111.

It is an arithmetic number, because the mean of its divisors is an integer number (71566510111).

Almost surely, 2^143133020221 is an apocalyptic number.

It is an amenable number.

143133020221 is a deficient number, since it is larger than the sum of its proper divisors (1).

143133020221 is an equidigital number, since it uses as much as digits as its factorization.

143133020221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 143133020221 its reverse (122020331341), we get a palindrome (265153351562).

The spelling of 143133020221 in words is "one hundred forty-three billion, one hundred thirty-three million, twenty thousand, two hundred twenty-one".