22222221011020 has 48 divisors (see below), whose sum is σ = 46709500723200. Its totient is φ = 8880731653824.

The previous prime is 22222221011017. The next prime is 22222221011027. The reversal of 22222221011020 is 2011012222222.

It is a super-2 number, since 2×22222221011020² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22222221011027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142256197 + ... + 142412323.

It is an arithmetic number, because the mean of its divisors is an integer number (973114598400).

Almost surely, 2^{22222221011020} is an apocalyptic number.

22222221011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222221011020 is an abundant number, since it is smaller than the sum of its proper divisors (24487279712180).

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

22222221011020 is a wasteful number, since it uses less digits than its factorization.

22222221011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162622 (or 162620 counting only the distinct ones).

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

Adding to 22222221011020 its reverse (2011012222222), we get a palindrome (24233233233242).

The spelling of 22222221011020 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-one million, eleven thousand, twenty".