22012220121121 has 8 divisors (see below), whose sum is σ = 23307109361280. Its totient is φ = 20717336743488.

The previous prime is 22012220121119. The next prime is 22012220121169. The reversal of 22012220121121 is 12112102221022.

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

It is not a de Polignac number, because 22012220121121 - 2¹ = 22012220121119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22012227121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8018100 + ... + 10407418.

It is an arithmetic number, because the mean of its divisors is an integer number (2913388670160).

Almost surely, 2^{22012220121121} is an apocalyptic number.

It is an amenable number.

22012220121121 is a deficient number, since it is larger than the sum of its proper divisors (1294889240159).

22012220121121 is a wasteful number, since it uses less digits than its factorization.

22012220121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931263.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22012220121121 its reverse (12112102221022), we get a palindrome (34124322342143).

The spelling of 22012220121121 in words is "twenty-two trillion, twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".