2122020220221 has 48 divisors (see below), whose sum is σ = 3432485614272. Its totient is φ = 1252150099200.

The previous prime is 2122020220211. The next prime is 2122020220319. The reversal of 2122020220221 is 1220220202212.

2122020220221 is a `hidden beast` number, since 2 + 1 + 220 + 2 + 0 + 220 + 221 = 666.

It is not a de Polignac number, because 2122020220221 - 2⁶ = 2122020220157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122020220194 and 2122020220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122020220211) 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, 536151 + ... + 2128731.

It is an arithmetic number, because the mean of its divisors is an integer number (71510116964).

Almost surely, 2^{2122020220221} is an apocalyptic number.

It is an amenable number.

2122020220221 is a deficient number, since it is larger than the sum of its proper divisors (1310465394051).

2122020220221 is a wasteful number, since it uses less digits than its factorization.

2122020220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592954 (or 1592951 counting only the distinct ones).

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

Adding to 2122020220221 its reverse (1220220202212), we get a palindrome (3342240422433).

The spelling of 2122020220221 in words is "two trillion, one hundred twenty-two billion, twenty million, two hundred twenty thousand, two hundred twenty-one".