22222020020 has 24 divisors (see below), whose sum is σ = 46788102144. Its totient is φ = 8865596576.

The previous prime is 22222020017. The next prime is 22222020083. The reversal of 22222020020 is 2002022222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22222019977 and 22222020004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1442864 + ... + 1458183.

It is an arithmetic number, because the mean of its divisors is an integer number (1949504256).

Almost surely, 2^22222020020 is an apocalyptic number.

22222020020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222020020 is an abundant number, since it is smaller than the sum of its proper divisors (24566082124).

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

22222020020 is a wasteful number, since it uses less digits than its factorization.

22222020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901439 (or 2901437 counting only the distinct ones).

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

Adding to 22222020020 its reverse (2002022222), we get a palindrome (24224042242).

The spelling of 22222020020 in words is "twenty-two billion, two hundred twenty-two million, twenty thousand, twenty".