20022201220221 has 12 divisors (see below), whose sum is σ = 29058023469280. Its totient is φ = 13284872846280.

The previous prime is 20022201220211. The next prime is 20022201220271. The reversal of 20022201220221 is 12202210222002.

20022201220221 is a `hidden beast` number, since 2 + 0 + 0 + 2 + 220 + 1 + 220 + 221 = 666.

It is not a de Polignac number, because 20022201220221 - 2⁷ = 20022201220093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022201220194 and 20022201220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022201220211) 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 11 ways as a sum of consecutive naturals, for example, 5271773041 + ... + 5271776838.

Almost surely, 2^{20022201220221} is an apocalyptic number.

It is an amenable number.

20022201220221 is a deficient number, since it is larger than the sum of its proper divisors (9035822249059).

20022201220221 is a wasteful number, since it uses less digits than its factorization.

20022201220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10543550096 (or 10543550093 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20022201220221 its reverse (12202210222002), we get a palindrome (32224411442223).

The spelling of 20022201220221 in words is "twenty trillion, twenty-two billion, two hundred one million, two hundred twenty thousand, two hundred twenty-one".