22122220222020 has 24 divisors (see below), whose sum is σ = 61942216621824. Its totient is φ = 5899258725856.

The previous prime is 22122220222019. The next prime is 22122220222129. The reversal of 22122220222020 is 2022202222122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184351835124 + ... + 184351835243.

It is an arithmetic number, because the mean of its divisors is an integer number (2580925692576).

Almost surely, 2^{22122220222020} is an apocalyptic number.

22122220222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122220222020 is an abundant number, since it is smaller than the sum of its proper divisors (39819996399804).

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

22122220222020 is a wasteful number, since it uses less digits than its factorization.

22122220222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368703670379 (or 368703670377 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22122220222020 its reverse (2022202222122), we get a palindrome (24144422444142).

The spelling of 22122220222020 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, twenty".