20022121000121 has 8 divisors (see below), whose sum is σ = 20038476294144. Its totient is φ = 20005770389920.

The previous prime is 20022121000099. The next prime is 20022121000153. The reversal of 20022121000121 is 12100012122002.

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 20022121000121 - 2³⁰ = 20021047258297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022121000096 and 20022121000105.

It is not an unprimeable number, because it can be changed into a prime (20022121008121) 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, 7407656 + ... + 9742566.

It is an arithmetic number, because the mean of its divisors is an integer number (2504809536768).

Almost surely, 2^{20022121000121} is an apocalyptic number.

It is an amenable number.

20022121000121 is a deficient number, since it is larger than the sum of its proper divisors (16355294023).

20022121000121 is a wasteful number, since it uses less digits than its factorization.

20022121000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341911.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20022121000121 its reverse (12100012122002), we get a palindrome (32122133122123).

The spelling of 20022121000121 in words is "twenty trillion, twenty-two billion, one hundred twenty-one million, one hundred twenty-one", and thus it is an aban number.