220221220120 has 64 divisors (see below), whose sum is σ = 545895015840. Its totient is φ = 79287552000.

The previous prime is 220221220091. The next prime is 220221220159. The reversal of 220221220120 is 21022122022.

It is a super-2 number, since 2×220221220120² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220221220094 and 220221220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2433297 + ... + 2522176.

Almost surely, 2^220221220120 is an apocalyptic number.

220221220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221220120 is an abundant number, since it is smaller than the sum of its proper divisors (325673795720).

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

220221220120 is a wasteful number, since it uses less digits than its factorization.

220221220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4955596 (or 4955592 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 220221220120 its reverse (21022122022), we get a palindrome (241243342142).

The spelling of 220221220120 in words is "two hundred twenty billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty".