20122200121021 has 8 divisors (see below), whose sum is σ = 20126457692384. Its totient is φ = 20117942816400.

The previous prime is 20122200121003. The next prime is 20122200121063. The reversal of 20122200121021 is 12012100222102.

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 20122200121021 - 2⁵ = 20122200120989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122200120986 and 20122200121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122200121091) 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, 230749990 + ... + 230837176.

It is an arithmetic number, because the mean of its divisors is an integer number (2515807211548).

Almost surely, 2^{20122200121021} is an apocalyptic number.

It is an amenable number.

20122200121021 is a deficient number, since it is larger than the sum of its proper divisors (4257571363).

20122200121021 is an equidigital number, since it uses as much as digits as its factorization.

20122200121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133371.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20122200121021 its reverse (12012100222102), we get a palindrome (32134300343123).

The spelling of 20122200121021 in words is "twenty trillion, one hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, twenty-one".