22120102222220 has 48 divisors (see below), whose sum is σ = 49185147691008. Its totient is φ = 8327491737600.

The previous prime is 22120102222159. The next prime is 22120102222297. The reversal of 22120102222220 is 2222220102122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22120102222192 and 22120102222201.

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 15 ways as a sum of consecutive naturals, for example, 48864920 + ... + 49315520.

It is an arithmetic number, because the mean of its divisors is an integer number (1024690576896).

Almost surely, 2^{22120102222220} is an apocalyptic number.

22120102222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120102222220 is an abundant number, since it is smaller than the sum of its proper divisors (27065045468788).

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

22120102222220 is a wasteful number, since it uses less digits than its factorization.

22120102222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595010 (or 595008 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22120102222220 its reverse (2222220102122), we get a palindrome (24342322324342).

The spelling of 22120102222220 in words is "twenty-two trillion, one hundred twenty billion, one hundred two million, two hundred twenty-two thousand, two hundred twenty".