20200122220221 has 20 divisors (see below), whose sum is σ = 30175766232832. Its totient is φ = 13466625412968.

The previous prime is 20200122220219. The next prime is 20200122220249. The reversal of 20200122220221 is 12202222100202.

20200122220221 is a `hidden beast` number, since 2 + 0 + 200 + 1 + 22 + 220 + 221 = 666.

It is not a de Polignac number, because 20200122220221 - 2¹ = 20200122220219 is a prime.

It is a super-3 number, since 3×20200122220221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20200122220194 and 20200122220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200122220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8285220 + ... + 10442466.

Almost surely, 2^{20200122220221} is an apocalyptic number.

It is an amenable number.

20200122220221 is a deficient number, since it is larger than the sum of its proper divisors (9975644012611).

20200122220221 is a wasteful number, since it uses less digits than its factorization.

20200122220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272862 (or 2272853 counting only the distinct ones).

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

Adding to 20200122220221 its reverse (12202222100202), we get a palindrome (32402344320423).

The spelling of 20200122220221 in words is "twenty trillion, two hundred billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".