2222220011121 has 12 divisors (see below), whose sum is σ = 3501680017680. Its totient is φ = 1346800006680.

The previous prime is 2222220010951. The next prime is 2222220011129. The reversal of 2222220011121 is 1211100222222.

It is a happy number.

It is not a de Polignac number, because 2222220011121 - 2⁹ = 2222220010609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222220011094 and 2222220011103.

It is not an unprimeable number, because it can be changed into a prime (2222220011129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11223333291 + ... + 11223333488.

It is an arithmetic number, because the mean of its divisors is an integer number (291806668140).

Almost surely, 2^{2222220011121} is an apocalyptic number.

It is an amenable number.

2222220011121 is a deficient number, since it is larger than the sum of its proper divisors (1279460006559).

2222220011121 is a wasteful number, since it uses less digits than its factorization.

2222220011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446666796 (or 22446666793 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2222220011121 its reverse (1211100222222), we get a palindrome (3433320233343).

The spelling of 2222220011121 in words is "two trillion, two hundred twenty-two billion, two hundred twenty million, eleven thousand, one hundred twenty-one".