22212102020 has 96 divisors (see below), whose sum is σ = 49496832000. Its totient is φ = 8360985600.

The previous prime is 22212102013. The next prime is 22212102023. The reversal of 22212102020 is 2020121222.

It is a super-2 number, since 2×22212102020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22212101986 and 22212102004.

It is not an unprimeable number, because it can be changed into a prime (22212102023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3362681 + ... + 3369279.

It is an arithmetic number, because the mean of its divisors is an integer number (515592000).

Almost surely, 2^22212102020 is an apocalyptic number.

22212102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24748416000).

22212102020 is an abundant number, since it is smaller than the sum of its proper divisors (27284729980).

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

22212102020 is a wasteful number, since it uses less digits than its factorization.

22212102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789 (or 6787 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22212102020 its reverse (2020121222), we get a palindrome (24232223242).

The spelling of 22212102020 in words is "twenty-two billion, two hundred twelve million, one hundred two thousand, twenty".