22120001220220 has 24 divisors (see below), whose sum is σ = 46598538861504. Its totient is φ = 8820088812096.

The previous prime is 22120001220193. The next prime is 22120001220271. The reversal of 22120001220220 is 2202210002122.

It is a junction number, because it is equal to n+sod(n) for n = 22120001220194 and 22120001220203.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1744473252 + ... + 1744485931.

It is an arithmetic number, because the mean of its divisors is an integer number (1941605785896).

Almost surely, 2^{22120001220220} is an apocalyptic number.

22120001220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120001220220 is an abundant number, since it is smaller than the sum of its proper divisors (24478537641284).

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

22120001220220 is a wasteful number, since it uses less digits than its factorization.

22120001220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488959509 (or 3488959507 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22120001220220 its reverse (2202210002122), we get a palindrome (24322211222342).

The spelling of 22120001220220 in words is "twenty-two trillion, one hundred twenty billion, one million, two hundred twenty thousand, two hundred twenty".