22220021010 has 128 divisors (see below), whose sum is σ = 63900887040. Its totient is φ = 4881254400.

The previous prime is 22220020993. The next prime is 22220021027. The reversal of 22220021010 is 1012002222.

It is an interprime number because it is at equal distance from previous prime (22220020993) and next prime (22220021027).

It is a Curzon 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, 67170 + ... + 221250.

It is an arithmetic number, because the mean of its divisors is an integer number (499225680).

Almost surely, 2^22220021010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220021010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31950443520).

22220021010 is an abundant number, since it is smaller than the sum of its proper divisors (41680866030).

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

22220021010 is a wasteful number, since it uses less digits than its factorization.

22220021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154144.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 22220021010 its reverse (1012002222), we get a palindrome (23232023232).

The spelling of 22220021010 in words is "twenty-two billion, two hundred twenty million, twenty-one thousand, ten".