221122210210 has 16 divisors (see below), whose sum is σ = 434203612992. Its totient is φ = 80408076400.

The previous prime is 221122210207. The next prime is 221122210271. The reversal of 221122210210 is 12012221122.

It is a happy number.

It is a super-3 number, since 3×221122210210³ (a number of 35 digits) contains 333 as substring.

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, 1005100846 + ... + 1005101065.

It is an arithmetic number, because the mean of its divisors is an integer number (27137725812).

Almost surely, 2^221122210210 is an apocalyptic number.

221122210210 is a deficient number, since it is larger than the sum of its proper divisors (213081402782).

221122210210 is a wasteful number, since it uses less digits than its factorization.

221122210210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010201929.

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

Adding to 221122210210 its reverse (12012221122), we get a palindrome (233134431332).

It can be divided in two parts, 22112 and 2210210, that added together give a palindrome (2232322).

The spelling of 221122210210 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, two hundred ten".