221243140430332 has 24 divisors (see below), whose sum is σ = 394484710645872. Its totient is φ = 108533265609600.

The previous prime is 221243140430327. The next prime is 221243140430339. The reversal of 221243140430332 is 233034041342122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221243140430339) 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, 15752032 + ... + 26279512.

It is an arithmetic number, because the mean of its divisors is an integer number (16436862943578).

Almost surely, 2^{221243140430332} is an apocalyptic number.

It is an amenable number.

221243140430332 is a deficient number, since it is larger than the sum of its proper divisors (173241570215540).

221243140430332 is a wasteful number, since it uses less digits than its factorization.

221243140430332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626669 (or 10626667 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 221243140430332 its reverse (233034041342122), we get a palindrome (454277181772454).

The spelling of 221243140430332 in words is "two hundred twenty-one trillion, two hundred forty-three billion, one hundred forty million, four hundred thirty thousand, three hundred thirty-two".