222111200220 has 192 divisors, whose sum is σ = 775119851520. Its totient is φ = 46269729792.

The previous prime is 222111200191. The next prime is 222111200321. The reversal of 222111200220 is 22002111222.

It is a super-3 number, since 3×222111200220³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222111200220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 173874 + ... + 688806.

It is an arithmetic number, because the mean of its divisors is an integer number (4037082560).

Almost surely, 2^222111200220 is an apocalyptic number.

222111200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222111200220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387559925760).

222111200220 is an abundant number, since it is smaller than the sum of its proper divisors (553008651300).

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

222111200220 is a wasteful number, since it uses less digits than its factorization.

222111200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515044 (or 515042 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222111200220 its reverse (22002111222), we get a palindrome (244113311442).

The spelling of 222111200220 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred thousand, two hundred twenty".