2020221221231 has 2 divisors, whose sum is σ = 2020221221232. Its totient is φ = 2020221221230.

The previous prime is 2020221221201. The next prime is 2020221221269. The reversal of 2020221221231 is 1321221220202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020221221231 is a prime.

It is a super-2 number, since 2×2020221221231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020221221201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010110610615 + 1010110610616.

It is an arithmetic number, because the mean of its divisors is an integer number (1010110610616).

Almost surely, 2^{2020221221231} is an apocalyptic number.

2020221221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020221221231 is an equidigital number, since it uses as much as digits as its factorization.

2020221221231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2020221221231 its reverse (1321221220202), we get a palindrome (3341442441433).

The spelling of 2020221221231 in words is "two trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-one".