2152202281 has 2 divisors, whose sum is σ = 2152202282. Its totient is φ = 2152202280.

The previous prime is 2152202243. The next prime is 2152202287. The reversal of 2152202281 is 1822022512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2110483600 + 41718681 = 45940^2 + 6459^2 .

It is a cyclic number.

It is not a de Polignac number, because 2152202281 - 2¹³ = 2152194089 is a prime.

It is a super-2 number, since 2×2152202281² = 9263949316683205922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2152202287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076101140 + 1076101141.

It is an arithmetic number, because the mean of its divisors is an integer number (1076101141).

Almost surely, 2^2152202281 is an apocalyptic number.

It is an amenable number.

2152202281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2152202281 is an equidigital number, since it uses as much as digits as its factorization.

2152202281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 2152202281 is about 46391.8342060324. The cubic root of 2152202281 is about 1291.1034128267.

Adding to 2152202281 its reverse (1822022512), we get a palindrome (3974224793).

The spelling of 2152202281 in words is "two billion, one hundred fifty-two million, two hundred two thousand, two hundred eighty-one".