2022221011221 has 6 divisors (see below), whose sum is σ = 2920985905110. Its totient is φ = 1348147340808.

The previous prime is 2022221011211. The next prime is 2022221011231. The reversal of 2022221011221 is 1221101222202.

It is a happy number.

2022221011221 is a `hidden beast` number, since 2 + 0 + 222 + 210 + 11 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (2022221011211) and next prime (2022221011231).

It can be written as a sum of positive squares in only one way, i.e., 1271639628900 + 750581382321 = 1127670^2 + 866361^2 .

It is not a de Polignac number, because 2022221011221 - 2⁹ = 2022221010709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022221011194 and 2022221011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022221011211) 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 5 ways as a sum of consecutive naturals, for example, 112345611726 + ... + 112345611743.

It is an arithmetic number, because the mean of its divisors is an integer number (486830984185).

Almost surely, 2^{2022221011221} is an apocalyptic number.

It is an amenable number.

2022221011221 is a deficient number, since it is larger than the sum of its proper divisors (898764893889).

2022221011221 is a wasteful number, since it uses less digits than its factorization.

2022221011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224691223475 (or 224691223472 counting only the distinct ones).

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

Adding to 2022221011221 its reverse (1221101222202), we get a palindrome (3243322233423).

The spelling of 2022221011221 in words is "two trillion, twenty-two billion, two hundred twenty-one million, eleven thousand, two hundred twenty-one".