22220022020020 has 384 divisors, whose sum is σ = 53805215084544. Its totient is φ = 7701059520000.

The previous prime is 22220022019981. The next prime is 22220022020029. The reversal of 22220022020020 is 2002022002222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22220022019976 and 22220022020003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220022020029) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8208355507 + ... + 8208358213.

It is an arithmetic number, because the mean of its divisors is an integer number (140117747616).

Almost surely, 2^{22220022020020} is an apocalyptic number.

22220022020020 is a gapful number since it is divisible by the number (20) 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 22220022020020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26902607542272).

22220022020020 is an abundant number, since it is smaller than the sum of its proper divisors (31585193064524).

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

22220022020020 is a wasteful number, since it uses less digits than its factorization.

22220022020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964 (or 2940 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22220022020020 its reverse (2002022002222), we get a palindrome (24222044022242).

The spelling of 22220022020020 in words is "twenty-two trillion, two hundred twenty billion, twenty-two million, twenty thousand, twenty".