22000222002020 has 48 divisors (see below), whose sum is σ = 47078502509808. Its totient is φ = 8632888442880.

The previous prime is 22000222001999. The next prime is 22000222002037. The reversal of 22000222002020 is 2020022200022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3888405385216 + 18111816616804 = 1971904^2 + 4255798^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22000222001986 and 22000222002004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6512780 + ... + 9296060.

It is an arithmetic number, because the mean of its divisors is an integer number (980802135621).

Almost surely, 2^{22000222002020} is an apocalyptic number.

22000222002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000222002020 is an abundant number, since it is smaller than the sum of its proper divisors (25078280507788).

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

22000222002020 is a wasteful number, since it uses less digits than its factorization.

22000222002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790800 (or 2790798 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22000222002020 its reverse (2020022200022), we get a palindrome (24020244202042).

The spelling of 22000222002020 in words is "twenty-two trillion, two hundred twenty-two million, two thousand, twenty".