221122120210 has 16 divisors (see below), whose sum is σ = 398064168576. Its totient is φ = 88438992048.

The previous prime is 221122120207. The next prime is 221122120229. The reversal of 221122120210 is 12021221122.

It is a happy number.

221122120210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1137432 + ... + 1317571.

It is an arithmetic number, because the mean of its divisors is an integer number (24879010536).

Almost surely, 2^221122120210 is an apocalyptic number.

221122120210 is a deficient number, since it is larger than the sum of its proper divisors (176942048366).

221122120210 is a wasteful number, since it uses less digits than its factorization.

221122120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464017.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221122120210 its reverse (12021221122), we get a palindrome (233143341332).

The spelling of 221122120210 in words is "two hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred ten".