221321331034 has 8 divisors (see below), whose sum is σ = 331984015380. Its totient is φ = 110659992576.

The previous prime is 221321331013. The next prime is 221321331037. The reversal of 221321331034 is 430133123122.

221321331034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221299680625 + 21650409 = 470425^2 + 4653^2 .

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

It is a super-2 number, since 2×221321331034² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221321331037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378412 + ... + 765400.

Almost surely, 2^221321331034 is an apocalyptic number.

221321331034 is a deficient number, since it is larger than the sum of its proper divisors (110662684346).

221321331034 is a wasteful number, since it uses less digits than its factorization.

221321331034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672944.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 221321331034 its reverse (430133123122), we get a palindrome (651454454156).

The spelling of 221321331034 in words is "two hundred twenty-one billion, three hundred twenty-one million, three hundred thirty-one thousand, thirty-four".