2220121222120 has 64 divisors (see below), whose sum is σ = 5084989747200. Its totient is φ = 872216517120.

The previous prime is 2220121222069. The next prime is 2220121222129. The reversal of 2220121222120 is 212221210222.

It is not an unprimeable number, because it can be changed into a prime (2220121222129) 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, 1235629 + ... + 2442748.

It is an arithmetic number, because the mean of its divisors is an integer number (79452964800).

Almost surely, 2^{2220121222120} is an apocalyptic number.

2220121222120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220121222120 is an abundant number, since it is smaller than the sum of its proper divisors (2864868525080).

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

2220121222120 is a wasteful number, since it uses less digits than its factorization.

2220121222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678658 (or 3678654 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2220121222120 its reverse (212221210222), we get a palindrome (2432342432342).

The spelling of 2220121222120 in words is "two trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty".