2022021202221 has 24 divisors (see below), whose sum is σ = 2975073738104. Its totient is φ = 1323014031360.

The previous prime is 2022021202219. The next prime is 2022021202261. The reversal of 2022021202221 is 1222021202202.

2022021202221 is a `hidden beast` number, since 2 + 0 + 220 + 21 + 202 + 221 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 375598605321 + 1646422596900 = 612861^2 + 1283130^2 .

It is not a de Polignac number, because 2022021202221 - 2¹ = 2022021202219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022021202194 and 2022021202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022021202211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3778756 + ... + 4280541.

Almost surely, 2^{2022021202221} is an apocalyptic number.

It is an amenable number.

2022021202221 is a deficient number, since it is larger than the sum of its proper divisors (953052535883).

2022021202221 is a wasteful number, since it uses less digits than its factorization.

2022021202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059821 (or 8059818 counting only the distinct ones).

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

Adding to 2022021202221 its reverse (1222021202202), we get a palindrome (3244042404423).

The spelling of 2022021202221 in words is "two trillion, twenty-two billion, twenty-one million, two hundred two thousand, two hundred twenty-one".