22212313020 has 192 divisors, whose sum is σ = 73188541440. Its totient is φ = 5580976896.

The previous prime is 22212313003. The next prime is 22212313027. The reversal of 22212313020 is 2031321222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22212312984 and 22212313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212313027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 818794 + ... + 845486.

It is an arithmetic number, because the mean of its divisors is an integer number (381190320).

Almost surely, 2^22212313020 is an apocalyptic number.

22212313020 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 22212313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36594270720).

22212313020 is an abundant number, since it is smaller than the sum of its proper divisors (50976228420).

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

22212313020 is a wasteful number, since it uses less digits than its factorization.

22212313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26801 (or 26793 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22212313020 its reverse (2031321222), we get a palindrome (24243634242).

The spelling of 22212313020 in words is "twenty-two billion, two hundred twelve million, three hundred thirteen thousand, twenty".