2152362221 has 2 divisors, whose sum is σ = 2152362222. Its totient is φ = 2152362220.

The previous prime is 2152362211. The next prime is 2152362257. The reversal of 2152362221 is 1222632512.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1629736900 + 522625321 = 40370^2 + 22861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152362221 - 2¹⁴ = 2152345837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2152362211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076181110 + 1076181111.

It is an arithmetic number, because the mean of its divisors is an integer number (1076181111).

Almost surely, 2^2152362221 is an apocalyptic number.

It is an amenable number.

2152362221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152362221 is an equidigital number, since it uses as much as digits as its factorization.

2152362221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 2152362221 is about 46393.5579687525. The cubic root of 2152362221 is about 1291.1353946354.

Adding to 2152362221 its reverse (1222632512), we get a palindrome (3374994733).

The spelling of 2152362221 in words is "two billion, one hundred fifty-two million, three hundred sixty-two thousand, two hundred twenty-one".