20222221102121 has 8 divisors (see below), whose sum is σ = 20261629752000. Its totient is φ = 20182848103440.

The previous prime is 20222221102099. The next prime is 20222221102219. The reversal of 20222221102121 is 12120112222202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20222221102121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222221102093 and 20222221102102.

It is not an unprimeable number, because it can be changed into a prime (20222229102121) 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, 7777106 + ... + 10046283.

It is an arithmetic number, because the mean of its divisors is an integer number (2532703719000).

Almost surely, 2^{20222221102121} is an apocalyptic number.

It is an amenable number.

20222221102121 is a deficient number, since it is larger than the sum of its proper divisors (39408649879).

20222221102121 is a wasteful number, since it uses less digits than its factorization.

20222221102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17825599.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20222221102121 its reverse (12120112222202), we get a palindrome (32342333324323).

The spelling of 20222221102121 in words is "twenty trillion, two hundred twenty-two billion, two hundred twenty-one million, one hundred two thousand, one hundred twenty-one".