220220011121121 has 12 divisors (see below), whose sum is σ = 347013350857680. Its totient is φ = 133466673406680.

The previous prime is 220220011121093. The next prime is 220220011121183. The reversal of 220220011121121 is 121121110022022.

220220011121121 is a `hidden beast` number, since 220 + 2 + 200 + 1 + 1 + 121 + 121 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-220220011121121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220220011121094 and 220220011121103.

It is not an unprimeable number, because it can be changed into a prime (220220011121021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1112222278291 + ... + 1112222278488.

It is an arithmetic number, because the mean of its divisors is an integer number (28917779238140).

Almost surely, 2^{220220011121121} is an apocalyptic number.

It is an amenable number.

220220011121121 is a deficient number, since it is larger than the sum of its proper divisors (126793339736559).

220220011121121 is a wasteful number, since it uses less digits than its factorization.

220220011121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224444556796 (or 2224444556793 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220220011121121 its reverse (121121110022022), we get a palindrome (341341121143143).

The spelling of 220220011121121 in words is "two hundred twenty trillion, two hundred twenty billion, eleven million, one hundred twenty-one thousand, one hundred twenty-one".