220011121121 has 16 divisors (see below), whose sum is σ = 242236431360. Its totient is φ = 198164339280.

The previous prime is 220011121073. The next prime is 220011121123. The reversal of 220011121121 is 121121110022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220011121121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220011121096 and 220011121105.

It is not an unprimeable number, because it can be changed into a prime (220011121123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368900 + ... + 759018.

It is an arithmetic number, because the mean of its divisors is an integer number (15139776960).

Almost surely, 2^220011121121 is an apocalyptic number.

It is an amenable number.

220011121121 is a deficient number, since it is larger than the sum of its proper divisors (22225310239).

220011121121 is a wasteful number, since it uses less digits than its factorization.

220011121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390604.

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

Adding to 220011121121 its reverse (121121110022), we get a palindrome (341132231143).

The spelling of 220011121121 in words is "two hundred twenty billion, eleven million, one hundred twenty-one thousand, one hundred twenty-one".