222111022210 has 128 divisors (see below), whose sum is σ = 511631769600. Its totient is φ = 67413772800.

The previous prime is 222111022151. The next prime is 222111022213. The reversal of 222111022210 is 12220111222.

It is a happy number.

It is a super-2 number, since 2×222111022210² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222111022213) 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, 7186390 + ... + 7217230.

It is an arithmetic number, because the mean of its divisors is an integer number (3997123200).

Almost surely, 2^222111022210 is an apocalyptic number.

222111022210 is an abundant number, since it is smaller than the sum of its proper divisors (289520747390).

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

222111022210 is a wasteful number, since it uses less digits than its factorization.

222111022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31112.

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

Adding to 222111022210 its reverse (12220111222), we get a palindrome (234331133432).

The spelling of 222111022210 in words is "two hundred twenty-two billion, one hundred eleven million, twenty-two thousand, two hundred ten".