220120020121 has 8 divisors (see below), whose sum is σ = 226720719360. Its totient is φ = 213553610928.

The previous prime is 220120020119. The next prime is 220120020137. The reversal of 220120020121 is 121020021022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220120020121 - 2¹ = 220120020119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220120020821) by changing a digit.

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, 8559481 + ... + 8585158.

It is an arithmetic number, because the mean of its divisors is an integer number (28340089920).

Almost surely, 2^220120020121 is an apocalyptic number.

It is an amenable number.

220120020121 is a deficient number, since it is larger than the sum of its proper divisors (6600699239).

220120020121 is a wasteful number, since it uses less digits than its factorization.

220120020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17145023.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220120020121 its reverse (121020021022), we get a palindrome (341140041143).

Subtracting from 220120020121 its reverse (121020021022), we obtain a palindrome (99099999099).

The spelling of 220120020121 in words is "two hundred twenty billion, one hundred twenty million, twenty thousand, one hundred twenty-one".