220220121000120 has 64 divisors (see below), whose sum is σ = 660868840116000. Its totient is φ = 58706834300928.

The previous prime is 220220120999993. The next prime is 220220121000127. The reversal of 220220121000120 is 21000121022022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220220121000120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220121000127) by changing a digit.

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, 289169685 + ... + 289930244.

Almost surely, 2^{220220121000120} is an apocalyptic number.

220220121000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220121000120 is an abundant number, since it is smaller than the sum of its proper divisors (440648719115880).

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

220220121000120 is a wasteful number, since it uses less digits than its factorization.

220220121000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579103112 (or 579103108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220220121000120 its reverse (21000121022022), we get a palindrome (241220242022142).

The spelling of 220220121000120 in words is "two hundred twenty trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty", and thus it is an aban number.