2220011121 has 4 divisors (see below), whose sum is σ = 2960014832. Its totient is φ = 1480007412.

The previous prime is 2220011119. The next prime is 2220011197. The reversal of 2220011121 is 1211100222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2220011121 - 2¹ = 2220011119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220011097 and 2220011106.

It is not an unprimeable number, because it can be changed into a prime (2220011021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370001851 + ... + 370001856.

It is an arithmetic number, because the mean of its divisors is an integer number (740003708).

Almost surely, 2^2220011121 is an apocalyptic number.

It is an amenable number.

2220011121 is a deficient number, since it is larger than the sum of its proper divisors (740003711).

2220011121 is an equidigital number, since it uses as much as digits as its factorization.

2220011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740003710.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2220011121 is about 47116.9939724512. The cubic root of 2220011121 is about 1304.5229283314.

Adding to 2220011121 its reverse (1211100222), we get a palindrome (3431111343).

The spelling of 2220011121 in words is "two billion, two hundred twenty million, eleven thousand, one hundred twenty-one".