20220201220221 has 48 divisors (see below), whose sum is σ = 31117734635520. Its totient is φ = 12632778053280.

The previous prime is 20220201220211. The next prime is 20220201220229. The reversal of 20220201220221 is 12202210202202.

20220201220221 is a `hidden beast` number, since 2 + 0 + 2 + 20 + 201 + 220 + 221 = 666.

It is not a de Polignac number, because 20220201220221 - 2¹⁴ = 20220201203837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20220201220194 and 20220201220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220201220229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8064055 + ... + 10269828.

It is an arithmetic number, because the mean of its divisors is an integer number (648286138240).

Almost surely, 2^{20220201220221} is an apocalyptic number.

It is an amenable number.

20220201220221 is a deficient number, since it is larger than the sum of its proper divisors (10897533415299).

20220201220221 is a wasteful number, since it uses less digits than its factorization.

20220201220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18334046 (or 18334043 counting only the distinct ones).

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

Adding to 20220201220221 its reverse (12202210202202), we get a palindrome (32422411422423).

The spelling of 20220201220221 in words is "twenty trillion, two hundred twenty billion, two hundred one million, two hundred twenty thousand, two hundred twenty-one".