222002223220 has 24 divisors (see below), whose sum is σ = 468780392808. Its totient is φ = 88310275200.

The previous prime is 222002223217. The next prime is 222002223227. The reversal of 222002223220 is 22322200222.

It can be written as a sum of positive squares in 4 ways, for example, as 12362256 + 221989860964 = 3516^2 + 471158^2 .

It is a super-2 number, since 2×222002223220² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002223227) 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, 30659671 + ... + 30666910.

It is an arithmetic number, because the mean of its divisors is an integer number (19532516367).

Almost surely, 2^222002223220 is an apocalyptic number.

222002223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002223220 is an abundant number, since it is smaller than the sum of its proper divisors (246778169588).

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

222002223220 is a wasteful number, since it uses less digits than its factorization.

222002223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61326771 (or 61326769 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 222002223220 its reverse (22322200222), we get a palindrome (244324423442).

The spelling of 222002223220 in words is "two hundred twenty-two billion, two million, two hundred twenty-three thousand, two hundred twenty".