221440134334 has 8 divisors (see below), whose sum is σ = 332251540488. Its totient is φ = 110689620840.

The previous prime is 221440134319. The next prime is 221440134341. The reversal of 221440134334 is 433431044122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221440134296 and 221440134305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15214072 + ... + 15228619.

It is an arithmetic number, because the mean of its divisors is an integer number (41531442561).

Almost surely, 2^221440134334 is an apocalyptic number.

221440134334 is a deficient number, since it is larger than the sum of its proper divisors (110811406154).

221440134334 is a wasteful number, since it uses less digits than its factorization.

221440134334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30446330.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 221440134334 its reverse (433431044122), we get a palindrome (654871178456).

The spelling of 221440134334 in words is "two hundred twenty-one billion, four hundred forty million, one hundred thirty-four thousand, three hundred thirty-four".