22220112221121 has 8 divisors (see below), whose sum is σ = 29675147155840. Its totient is φ = 14789242716912.

The previous prime is 22220112221113. The next prime is 22220112221143. The reversal of 22220112221121 is 12112221102222.

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

It is not a de Polignac number, because 22220112221121 - 2³ = 22220112221113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22220112221101) 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, 6041355481 + ... + 6041359158.

It is an arithmetic number, because the mean of its divisors is an integer number (3709393394480).

Almost surely, 2^{22220112221121} is an apocalyptic number.

It is an amenable number.

22220112221121 is a deficient number, since it is larger than the sum of its proper divisors (7455034934719).

22220112221121 is a wasteful number, since it uses less digits than its factorization.

22220112221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12082715255.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22220112221121 its reverse (12112221102222), we get a palindrome (34332333323343).

The spelling of 22220112221121 in words is "twenty-two trillion, two hundred twenty billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twenty-one".