220030121020 has 24 divisors (see below), whose sum is σ = 462110338368. Its totient is φ = 88003080000.

The previous prime is 220030120993. The next prime is 220030121041. The reversal of 220030121020 is 20121030022.

220030121020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 357556 + ... + 753595.

It is an arithmetic number, because the mean of its divisors is an integer number (19254597432).

Almost surely, 2^220030121020 is an apocalyptic number.

220030121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220030121020 is an abundant number, since it is smaller than the sum of its proper divisors (242080217348).

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

220030121020 is a wasteful number, since it uses less digits than its factorization.

220030121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121061 (or 1121059 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 220030121020 its reverse (20121030022), we get a palindrome (240151151042).

The spelling of 220030121020 in words is "two hundred twenty billion, thirty million, one hundred twenty-one thousand, twenty".