220121020011020 has 48 divisors (see below), whose sum is σ = 478702117555200. Its totient is φ = 84921913332480.

The previous prime is 220121020011019. The next prime is 220121020011037. The reversal of 220121020011020 is 20110020121022.

It is a junction number, because it is equal to n+sod(n) for n = 220121020010986 and 220121020011004.

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, 201111500 + ... + 202203059.

It is an arithmetic number, because the mean of its divisors is an integer number (9972960782400).

Almost surely, 2^{220121020011020} is an apocalyptic number.

220121020011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220121020011020 is an abundant number, since it is smaller than the sum of its proper divisors (258581097544180).

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

220121020011020 is a wasteful number, since it uses less digits than its factorization.

220121020011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403315538 (or 403315536 counting only the distinct ones).

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

Adding to 220121020011020 its reverse (20110020121022), we get a palindrome (240231040132042).

The spelling of 220121020011020 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty million, eleven thousand, twenty".