20122110121121 has 8 divisors (see below), whose sum is σ = 20228639664288. Its totient is φ = 20015685900000.

The previous prime is 20122110121073. The next prime is 20122110121199. The reversal of 20122110121121 is 12112101122102.

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 20122110121121 - 2¹⁰ = 20122110120097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122110121121.

It is not an unprimeable number, because it can be changed into a prime (20122110123121) 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, 25947380 + ... + 26711621.

It is an arithmetic number, because the mean of its divisors is an integer number (2528579958036).

Almost surely, 2^{20122110121121} is an apocalyptic number.

It is an amenable number.

20122110121121 is a deficient number, since it is larger than the sum of its proper divisors (106529543167).

20122110121121 is a wasteful number, since it uses less digits than its factorization.

20122110121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52661023.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20122110121121 its reverse (12112101122102), we get a palindrome (32234211243223).

The spelling of 20122110121121 in words is "twenty trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty-one thousand, one hundred twenty-one".