221034210244 has 6 divisors (see below), whose sum is σ = 386809867934. Its totient is φ = 110517105120.

The previous prime is 221034210169. The next prime is 221034210343. The reversal of 221034210244 is 442012430122.

It can be written as a sum of positive squares in only one way, i.e., 208083770244 + 12950440000 = 456162^2 + 113800^2 .

It is a super-2 number, since 2×221034210244² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27629276277 + ... + 27629276284.

Almost surely, 2^221034210244 is an apocalyptic number.

It is an amenable number.

221034210244 is a deficient number, since it is larger than the sum of its proper divisors (165775657690).

221034210244 is a wasteful number, since it uses less digits than its factorization.

221034210244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55258552565 (or 55258552563 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 221034210244 its reverse (442012430122), we get a palindrome (663046640366).

The spelling of 221034210244 in words is "two hundred twenty-one billion, thirty-four million, two hundred ten thousand, two hundred forty-four".