22220232210 has 96 divisors (see below), whose sum is σ = 63240585408. Its totient is φ = 5368268160.

The previous prime is 22220232191. The next prime is 22220232217. The reversal of 22220232210 is 1223202222.

22220232210 is a `hidden beast` number, since 2 + 2 + 220 + 232 + 210 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22220232217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 251769 + ... + 328371.

It is an arithmetic number, because the mean of its divisors is an integer number (658756098).

Almost surely, 2^22220232210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220232210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31620292704).

22220232210 is an abundant number, since it is smaller than the sum of its proper divisors (41020353198).

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

22220232210 is a wasteful number, since it uses less digits than its factorization.

22220232210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76920 (or 76917 counting only the distinct ones).

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

Adding to 22220232210 its reverse (1223202222), we get a palindrome (23443434432).

The spelling of 22220232210 in words is "twenty-two billion, two hundred twenty million, two hundred thirty-two thousand, two hundred ten".