22120101201220 has 48 divisors (see below), whose sum is σ = 50680524638016. Its totient is φ = 8042818608000.

The previous prime is 22120101201197. The next prime is 22120101201227. The reversal of 22120101201220 is 2210210102122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22120101201194 and 22120101201203.

It is not an unprimeable number, because it can be changed into a prime (22120101201227) 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, 3263646 + ... + 7408885.

It is an arithmetic number, because the mean of its divisors is an integer number (1055844263292).

Almost surely, 2^{22120101201220} is an apocalyptic number.

22120101201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120101201220 is an abundant number, since it is smaller than the sum of its proper divisors (28560423436796).

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

22120101201220 is a wasteful number, since it uses less digits than its factorization.

22120101201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681972 (or 10681970 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120101201220 its reverse (2210210102122), we get a palindrome (24330311303342).

The spelling of 22120101201220 in words is "twenty-two trillion, one hundred twenty billion, one hundred one million, two hundred one thousand, two hundred twenty".