220121221220122 has 32 divisors (see below), whose sum is σ = 355937967924480. Its totient is φ = 102049479639648.

The previous prime is 220121221220119. The next prime is 220121221220167. The reversal of 220121221220122 is 221022122121022.

220121221220122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220121221220093 and 220121221220102.

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, 170059083 + ... + 171348574.

It is an arithmetic number, because the mean of its divisors is an integer number (11123061497640).

Almost surely, 2^{220121221220122} is an apocalyptic number.

220121221220122 is a deficient number, since it is larger than the sum of its proper divisors (135816746704358).

220121221220122 is an equidigital number, since it uses as much as digits as its factorization.

220121221220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341407763 (or 341407725 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 220121221220122 its reverse (221022122121022), we get a palindrome (441143343341144).

The spelling of 220121221220122 in words is "two hundred twenty trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".