220101011121020 has 24 divisors (see below), whose sum is σ = 462242296471200. Its totient is φ = 88034657188032.

The previous prime is 220101011120989. The next prime is 220101011121041. The reversal of 220101011121020 is 20121110101022.

It is a junction number, because it is equal to n+sod(n) for n = 220101011120986 and 220101011121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358889735 + ... + 359502494.

It is an arithmetic number, because the mean of its divisors is an integer number (19260095686300).

Almost surely, 2^{220101011121020} is an apocalyptic number.

220101011121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101011121020 is an abundant number, since it is smaller than the sum of its proper divisors (242141285350180).

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

220101011121020 is a wasteful number, since it uses less digits than its factorization.

220101011121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718407557 (or 718407555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220101011121020 its reverse (20121110101022), we get a palindrome (240222121222042).

The spelling of 220101011121020 in words is "two hundred twenty trillion, one hundred one billion, eleven million, one hundred twenty-one thousand, twenty".