20022112021121 has 8 divisors (see below), whose sum is σ = 23500857353280. Its totient is φ = 16697977592688.

The previous prime is 20022112021073. The next prime is 20022112021141. The reversal of 20022112021121 is 12112021122002.

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

It is not a de Polignac number, because 20022112021121 - 2⁶ = 20022112021057 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 20022112021121.

It is not an unprimeable number, because it can be changed into a prime (20022112021141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38652725651 + ... + 38652726168.

It is an arithmetic number, because the mean of its divisors is an integer number (2937607169160).

Almost surely, 2^{20022112021121} is an apocalyptic number.

It is an amenable number.

20022112021121 is a deficient number, since it is larger than the sum of its proper divisors (3478745332159).

20022112021121 is an equidigital number, since it uses as much as digits as its factorization.

20022112021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77305451863.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20022112021121 its reverse (12112021122002), we get a palindrome (32134133143123).

The spelling of 20022112021121 in words is "twenty trillion, twenty-two billion, one hundred twelve million, twenty-one thousand, one hundred twenty-one".