22232202210 has 96 divisors (see below), whose sum is σ = 59556090672. Its totient is φ = 5749885440.

The previous prime is 22232202197. The next prime is 22232202229. The reversal of 22232202210 is 1220223222.

22232202210 is a `hidden beast` number, since 2 + 223 + 220 + 221 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 16143989481 + 6088212729 = 127059^2 + 78027^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1045080 + ... + 1066140.

Almost surely, 2^22232202210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22232202210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29778045336).

22232202210 is an abundant number, since it is smaller than the sum of its proper divisors (37323888462).

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

22232202210 is a wasteful number, since it uses less digits than its factorization.

22232202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21428 (or 21425 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22232202210 its reverse (1220223222), we get a palindrome (23452425432).

It can be divided in two parts, 22 and 232202210, that added together give a palindrome (232202232).

The spelling of 22232202210 in words is "twenty-two billion, two hundred thirty-two million, two hundred two thousand, two hundred ten".