220011112121 has 8 divisors (see below), whose sum is σ = 230079179904. Its totient is φ = 209984908320.

The previous prime is 220011112093. The next prime is 220011112169. The reversal of 220011112121 is 121211110022.

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 220011112121 - 2³⁴ = 202831242937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220011112096 and 220011112105.

It is not an unprimeable number, because it can be changed into a prime (220011112721) 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, 10455245 + ... + 10476266.

It is an arithmetic number, because the mean of its divisors is an integer number (28759897488).

Almost surely, 2^220011112121 is an apocalyptic number.

It is an amenable number.

220011112121 is a deficient number, since it is larger than the sum of its proper divisors (10068067783).

220011112121 is a wasteful number, since it uses less digits than its factorization.

220011112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20931991.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220011112121 its reverse (121211110022), we get a palindrome (341222222143).

The spelling of 220011112121 in words is "two hundred twenty billion, eleven million, one hundred twelve thousand, one hundred twenty-one".