2221200020120 has 32 divisors (see below), whose sum is σ = 4998347524800. Its totient is φ = 888364900608.

The previous prime is 2221200020113. The next prime is 2221200020131. The reversal of 2221200020120 is 210200021222.

It is a junction number, because it is equal to n+sod(n) for n = 2221200020095 and 2221200020104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3284165 + ... + 3902324.

It is an arithmetic number, because the mean of its divisors is an integer number (156198360150).

Almost surely, 2^{2221200020120} is an apocalyptic number.

2221200020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221200020120 is an abundant number, since it is smaller than the sum of its proper divisors (2777147504680).

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

2221200020120 is a wasteful number, since it uses less digits than its factorization.

2221200020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194227 (or 7194223 counting only the distinct ones).

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

Adding to 2221200020120 its reverse (210200021222), we get a palindrome (2431400041342).

The spelling of 2221200020120 in words is "two trillion, two hundred twenty-one billion, two hundred million, twenty thousand, one hundred twenty".