20002202220121 has 8 divisors (see below), whose sum is σ = 21820708728000. Its totient is φ = 18183716460240.

The previous prime is 20002202220109. The next prime is 20002202220157. The reversal of 20002202220121 is 12102220220002.

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 20002202220121 - 2¹⁵ = 20002202187353 is a prime.

It is a super-2 number, since 2×20002202220121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002202220095 and 20002202220104.

It is not an unprimeable number, because it can be changed into a prime (20002202220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3135981 + ... + 7059658.

It is an arithmetic number, because the mean of its divisors is an integer number (2727588591000).

Almost surely, 2^{20002202220121} is an apocalyptic number.

It is an amenable number.

20002202220121 is a deficient number, since it is larger than the sum of its proper divisors (1818506507879).

20002202220121 is a wasteful number, since it uses less digits than its factorization.

20002202220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10373999.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20002202220121 its reverse (12102220220002), we get a palindrome (32104422440123).

The spelling of 20002202220121 in words is "twenty trillion, two billion, two hundred two million, two hundred twenty thousand, one hundred twenty-one".