143212221241 has 4 divisors (see below), whose sum is σ = 143445847012. Its totient is φ = 142978595472.

The previous prime is 143212221227. The next prime is 143212221247. The reversal of 143212221241 is 142122212341.

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 3706983225 + 139505238016 = 60885^2 + 373504^2 .

It is a cyclic number.

It is not a de Polignac number, because 143212221241 - 2¹¹ = 143212219193 is a prime.

It is a super-2 number, since 2×143212221241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143212221247) 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, 116811966 + ... + 116813191.

It is an arithmetic number, because the mean of its divisors is an integer number (35861461753).

Almost surely, 2^143212221241 is an apocalyptic number.

It is an amenable number.

143212221241 is a deficient number, since it is larger than the sum of its proper divisors (233625771).

143212221241 is an equidigital number, since it uses as much as digits as its factorization.

143212221241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233625770.

The product of its digits is 1536, while the sum is 25.

Adding to 143212221241 its reverse (142122212341), we get a palindrome (285334433582).

The spelling of 143212221241 in words is "one hundred forty-three billion, two hundred twelve million, two hundred twenty-one thousand, two hundred forty-one".