22122011222020 has 12 divisors (see below), whose sum is σ = 46456223566284. Its totient is φ = 8848804488800.

The previous prime is 22122011221951. The next prime is 22122011222029. The reversal of 22122011222020 is 2022211022122.

It can be written as a sum of positive squares in 2 ways, for example, as 6181747361344 + 15940263860676 = 2486312^2 + 3992526^2 .

It is not an unprimeable number, because it can be changed into a prime (22122011222029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553050280531 + ... + 553050280570.

It is an arithmetic number, because the mean of its divisors is an integer number (3871351963857).

Almost surely, 2^{22122011222020} is an apocalyptic number.

22122011222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122011222020 is an abundant number, since it is smaller than the sum of its proper divisors (24334212344264).

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

22122011222020 is a wasteful number, since it uses less digits than its factorization.

22122011222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106100561110 (or 1106100561108 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22122011222020 its reverse (2022211022122), we get a palindrome (24144222244142).

The spelling of 22122011222020 in words is "twenty-two trillion, one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, twenty".