220121330033220 has 384 divisors, whose sum is σ = 805274706862080. Its totient is φ = 43563046686720.

The previous prime is 220121330033203. The next prime is 220121330033233. The reversal of 220121330033220 is 22330033121022.

It is a super-2 number, since 2×220121330033220² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 20313226 + ... + 29203934.

It is an arithmetic number, because the mean of its divisors is an integer number (2097069549120).

Almost surely, 2^{220121330033220} is an apocalyptic number.

220121330033220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220121330033220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402637353431040).

220121330033220 is an abundant number, since it is smaller than the sum of its proper divisors (585153376828860).

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

220121330033220 is a wasteful number, since it uses less digits than its factorization.

220121330033220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8890995 (or 8890993 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 220121330033220 its reverse (22330033121022), we get a palindrome (242451363154242).

The spelling of 220121330033220 in words is "two hundred twenty trillion, one hundred twenty-one billion, three hundred thirty million, thirty-three thousand, two hundred twenty".