20220120022221 has 12 divisors (see below), whose sum is σ = 33379245751072. Its totient is φ = 11554354298376.

The previous prime is 20220120022211. The next prime is 20220120022237. The reversal of 20220120022221 is 12222002102202.

20220120022221 is a `hidden beast` number, since 2 + 0 + 220 + 1 + 200 + 22 + 221 = 666.

It is not a de Polignac number, because 20220120022221 - 2⁹ = 20220120021709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20220120022194 and 20220120022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220120022211) 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, 160477142971 + ... + 160477143096.

Almost surely, 2^{20220120022221} is an apocalyptic number.

20220120022221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20220120022221 is a deficient number, since it is larger than the sum of its proper divisors (13159125728851).

20220120022221 is a wasteful number, since it uses less digits than its factorization.

20220120022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320954286080 (or 320954286077 counting only the distinct ones).

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

Adding to 20220120022221 its reverse (12222002102202), we get a palindrome (32442122124423).

The spelling of 20220120022221 in words is "twenty trillion, two hundred twenty billion, one hundred twenty million, twenty-two thousand, two hundred twenty-one".