22220000200020 has 192 divisors, whose sum is σ = 71454813696000. Its totient is φ = 5053808471040.

The previous prime is 22220000200009. The next prime is 22220000200051. The reversal of 22220000200020 is 2000200002222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22220000199969 and 22220000200005.

It is a congruent 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, 520975656 + ... + 521018304.

It is an arithmetic number, because the mean of its divisors is an integer number (372160488000).

Almost surely, 2^{22220000200020} is an apocalyptic number.

22220000200020 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 22220000200020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35727406848000).

22220000200020 is an abundant number, since it is smaller than the sum of its proper divisors (49234813495980).

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

22220000200020 is a wasteful number, since it uses less digits than its factorization.

22220000200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758 (or 48756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 22220000200020 its reverse (2000200002222), we get a palindrome (24220200202242).

The spelling of 22220000200020 in words is "twenty-two trillion, two hundred twenty billion, two hundred thousand, twenty".