22220210012 has 96 divisors (see below), whose sum is σ = 52258805760. Its totient is φ = 7983774720.

The previous prime is 22220209987. The next prime is 22220210071. The reversal of 22220210012 is 21001202222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5960093 + ... + 5963819.

It is an arithmetic number, because the mean of its divisors is an integer number (544362560).

Almost surely, 2^22220210012 is an apocalyptic number.

22220210012 is a gapful number since it is divisible by the number (22) 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 22220210012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26129402880).

22220210012 is an abundant number, since it is smaller than the sum of its proper divisors (30038595748).

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

22220210012 is a wasteful number, since it uses less digits than its factorization.

22220210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5251 (or 5249 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22220210012 its reverse (21001202222), we get a palindrome (43221412234).

It can be divided in two parts, 22220 and 210012, that added together give a palindrome (232232).

The spelling of 22220210012 in words is "twenty-two billion, two hundred twenty million, two hundred ten thousand, twelve".