221210342032 has 40 divisors (see below), whose sum is σ = 437911704000. Its totient is φ = 108223032192.

The previous prime is 221210342027. The next prime is 221210342053. The reversal of 221210342032 is 230243012122.

It is a junction number, because it is equal to n+sod(n) for n = 221210341994 and 221210342012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532732 + ... + 852187.

It is an arithmetic number, because the mean of its divisors is an integer number (10947792600).

Almost surely, 2^221210342032 is an apocalyptic number.

It is an amenable number.

221210342032 is a deficient number, since it is larger than the sum of its proper divisors (216701361968).

221210342032 is a wasteful number, since it uses less digits than its factorization.

221210342032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385143 (or 1385137 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221210342032 its reverse (230243012122), we get a palindrome (451453354154).

The spelling of 221210342032 in words is "two hundred twenty-one billion, two hundred ten million, three hundred forty-two thousand, thirty-two".