221100222210010 has 128 divisors (see below), whose sum is σ = 475810955827200. Its totient is φ = 72907109925120.

The previous prime is 221100222209983. The next prime is 221100222210019. The reversal of 221100222210010 is 10012222001122.

It is a happy number.

It is a super-2 number, since 2×221100222210010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221100222210019) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121177861 + ... + 122988919.

It is an arithmetic number, because the mean of its divisors is an integer number (3717273092400).

Almost surely, 2^{221100222210010} is an apocalyptic number.

221100222210010 is an abundant number, since it is smaller than the sum of its proper divisors (254710733617190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221100222210010 is a wasteful number, since it uses less digits than its factorization.

221100222210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812596.

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

Adding to 221100222210010 its reverse (10012222001122), we get a palindrome (231112444211132).

The spelling of 221100222210010 in words is "two hundred twenty-one trillion, one hundred billion, two hundred twenty-two million, two hundred ten thousand, ten".