220111120222121 has 8 divisors (see below), whose sum is σ = 227702322433920. Its totient is φ = 212519995582608.

The previous prime is 220111120222039. The next prime is 220111120222151. The reversal of 220111120222121 is 121222021111022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220111120222121 - 2³⁸ = 219836242315177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220111120222093 and 220111120222102.

It is not an unprimeable number, because it can be changed into a prime (220111120222151) 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, 13590791 + ... + 24998636.

It is an arithmetic number, because the mean of its divisors is an integer number (28462790304240).

Almost surely, 2^{220111120222121} is an apocalyptic number.

It is an amenable number.

220111120222121 is a deficient number, since it is larger than the sum of its proper divisors (7591202211799).

220111120222121 is a wasteful number, since it uses less digits than its factorization.

220111120222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38786143.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 220111120222121 its reverse (121222021111022), we get a palindrome (341333141333143).

The spelling of 220111120222121 in words is "two hundred twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".