20020222102121 has 8 divisors (see below), whose sum is σ = 20132929522944. Its totient is φ = 19907719419600.

The previous prime is 20020222102063. The next prime is 20020222102141. The reversal of 20020222102121 is 12120122202002.

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 20020222102121 - 2⁶ = 20020222102057 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 20020222102121.

It is not an unprimeable number, because it can be changed into a prime (20020222102141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50988455 + ... + 51379596.

It is an arithmetic number, because the mean of its divisors is an integer number (2516616190368).

Almost surely, 2^{20020222102121} is an apocalyptic number.

It is an amenable number.

20020222102121 is a deficient number, since it is larger than the sum of its proper divisors (112707420823).

20020222102121 is a wasteful number, since it uses less digits than its factorization.

20020222102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102369151.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20020222102121 its reverse (12120122202002), we get a palindrome (32140344304123).

The spelling of 20020222102121 in words is "twenty trillion, twenty billion, two hundred twenty-two million, one hundred two thousand, one hundred twenty-one".