2022121210221 has 12 divisors (see below), whose sum is σ = 3338104855072. Its totient is φ = 1155497834376.

The previous prime is 2022121210159. The next prime is 2022121210243. The reversal of 2022121210221 is 1220121212202.

It is a happy number.

2022121210221 is a `hidden beast` number, since 2 + 0 + 221 + 212 + 10 + 221 = 666.

It is not a de Polignac number, because 2022121210221 - 2⁶ = 2022121210157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2022121210194 and 2022121210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022121220221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16048580971 + ... + 16048581096.

Almost surely, 2^{2022121210221} is an apocalyptic number.

2022121210221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2022121210221 is a deficient number, since it is larger than the sum of its proper divisors (1315983644851).

2022121210221 is a wasteful number, since it uses less digits than its factorization.

2022121210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32097162080 (or 32097162077 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2022121210221 its reverse (1220121212202), we get a palindrome (3242242422423).

The spelling of 2022121210221 in words is "two trillion, twenty-two billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".