220201022111121 has 8 divisors (see below), whose sum is σ = 326223736460960. Its totient is φ = 146800681407396.

The previous prime is 220201022111107. The next prime is 220201022111141. The reversal of 220201022111121 is 121111220102022.

220201022111121 is a `hidden beast` number, since 220 + 20 + 102 + 211 + 112 + 1 = 666.

220201022111121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220201022111121 - 2²¹ = 220201020013969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220201022111094 and 220201022111103.

It is not an unprimeable number, because it can be changed into a prime (220201022111141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4077796705735 + ... + 4077796705788.

It is an arithmetic number, because the mean of its divisors is an integer number (40777967057620).

Almost surely, 2^{220201022111121} is an apocalyptic number.

It is an amenable number.

220201022111121 is a deficient number, since it is larger than the sum of its proper divisors (106022714349839).

220201022111121 is an equidigital number, since it uses as much as digits as its factorization.

220201022111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155593411532 (or 8155593411526 counting only the distinct ones).

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

Adding to 220201022111121 its reverse (121111220102022), we get a palindrome (341312242213143).

The spelling of 220201022111121 in words is "two hundred twenty trillion, two hundred one billion, twenty-two million, one hundred eleven thousand, one hundred twenty-one".