220101120001220 has 24 divisors (see below), whose sum is σ = 462418789056000. Its totient is φ = 88001126656992.

The previous prime is 220101120001153. The next prime is 220101120001237. The reversal of 220101120001220 is 22100021101022.

It is a junction number, because it is equal to n+sod(n) for n = 220101120001195 and 220101120001204.

It is an unprimeable number.

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, 2457538070 + ... + 2457627629.

It is an arithmetic number, because the mean of its divisors is an integer number (19267449544000).

Almost surely, 2^{220101120001220} is an apocalyptic number.

220101120001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101120001220 is an abundant number, since it is smaller than the sum of its proper divisors (242317669054780).

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

220101120001220 is a wasteful number, since it uses less digits than its factorization.

220101120001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4915167947 (or 4915167945 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 220101120001220 its reverse (22100021101022), we get a palindrome (242201141102242).

The spelling of 220101120001220 in words is "two hundred twenty trillion, one hundred one billion, one hundred twenty million, one thousand, two hundred twenty".