221022112210 has 16 divisors (see below), whose sum is σ = 397857484800. Its totient is φ = 88404915376.

The previous prime is 221022112187. The next prime is 221022112217. The reversal of 221022112210 is 12211220122.

It is a happy number.

221022112210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221022112217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249280 + ... + 710059.

It is an arithmetic number, because the mean of its divisors is an integer number (24866092800).

Almost surely, 2^221022112210 is an apocalyptic number.

221022112210 is a deficient number, since it is larger than the sum of its proper divisors (176835372590).

221022112210 is a wasteful number, since it uses less digits than its factorization.

221022112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982385.

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

Adding to 221022112210 its reverse (12211220122), we get a palindrome (233233332332).

It can be divided in two parts, 22102 and 2112210, that added together give a palindrome (2134312).

The spelling of 221022112210 in words is "two hundred twenty-one billion, twenty-two million, one hundred twelve thousand, two hundred ten".