20221202220221 has 8 divisors (see below), whose sum is σ = 21113498938560. Its totient is φ = 19329998336352.

The previous prime is 20221202220199. The next prime is 20221202220277. The reversal of 20221202220221 is 12202220212202.

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-20221202220221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20221202220193 and 20221202220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221202240221) 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, 273170795 + ... + 273244808.

It is an arithmetic number, because the mean of its divisors is an integer number (2639187367320).

Almost surely, 2^{20221202220221} is an apocalyptic number.

It is an amenable number.

20221202220221 is a deficient number, since it is larger than the sum of its proper divisors (892296718339).

20221202220221 is a wasteful number, since it uses less digits than its factorization.

20221202220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546417235.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20221202220221 its reverse (12202220212202), we get a palindrome (32423422432423).

The spelling of 20221202220221 in words is "twenty trillion, two hundred twenty-one billion, two hundred two million, two hundred twenty thousand, two hundred twenty-one".