2020122221 has 8 divisors (see below), whose sum is σ = 2187672480. Its totient is φ = 1854308592.

The previous prime is 2020122197. The next prime is 2020122227. The reversal of 2020122221 is 1222210202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020122221 - 2¹⁴ = 2020105837 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 = 2020122196 and 2020122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020122227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431735 + ... + 436388.

It is an arithmetic number, because the mean of its divisors is an integer number (273459060).

Almost surely, 2^2020122221 is an apocalyptic number.

It is an amenable number.

2020122221 is a deficient number, since it is larger than the sum of its proper divisors (167550259).

2020122221 is a wasteful number, since it uses less digits than its factorization.

2020122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868315.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2020122221 is about 44945.7697787011. The cubic root of 2020122221 is about 1264.1323594654.

Adding to 2020122221 its reverse (1222210202), we get a palindrome (3242332423).

The spelling of 2020122221 in words is "two billion, twenty million, one hundred twenty-two thousand, two hundred twenty-one".