22120121121121 has 8 divisors (see below), whose sum is σ = 22393990461024. Its totient is φ = 21846427063680.

The previous prime is 22120121121107. The next prime is 22120121121127. The reversal of 22120121121121 is 12112112102122.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22120121121121 - 2⁵ = 22120121121089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120121121127) 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, 43566651 + ... + 44071456.

It is an arithmetic number, because the mean of its divisors is an integer number (2799248807628).

Almost surely, 2^{22120121121121} is an apocalyptic number.

It is an amenable number.

22120121121121 is a deficient number, since it is larger than the sum of its proper divisors (273869339903).

22120121121121 is an equidigital number, since it uses as much as digits as its factorization.

22120121121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87641231.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22120121121121 its reverse (12112112102122), we get a palindrome (34232233223243).

The spelling of 22120121121121 in words is "twenty-two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-one".