220122000020 has 96 divisors (see below), whose sum is σ = 521337696768. Its totient is φ = 77460844032.

The previous prime is 220121999983. The next prime is 220122000053. The reversal of 220122000020 is 20000221022.

It is a junction number, because it is equal to n+sod(n) for n = 220121999965 and 220122000010.

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, 1590017 + ... + 1722903.

It is an arithmetic number, because the mean of its divisors is an integer number (5430601008).

Almost surely, 2^220122000020 is an apocalyptic number.

220122000020 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 220122000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260668848384).

220122000020 is an abundant number, since it is smaller than the sum of its proper divisors (301215696748).

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

220122000020 is a wasteful number, since it uses less digits than its factorization.

220122000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133209 (or 133207 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 220122000020 its reverse (20000221022), we get a palindrome (240122221042).

The spelling of 220122000020 in words is "two hundred twenty billion, one hundred twenty-two million, twenty", and thus it is an aban number.