2120225531 has 2 divisors, whose sum is σ = 2120225532. Its totient is φ = 2120225530.

The previous prime is 2120225521. The next prime is 2120225539. The reversal of 2120225531 is 1355220212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2120225531 - 2¹⁸ = 2119963387 is a prime.

It is a super-2 number, since 2×2120225531² = 8990712604608463922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120225497 and 2120225506.

It is not a weakly prime, because it can be changed into another prime (2120225539) 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 as a sum of consecutive naturals, namely, 1060112765 + 1060112766.

It is an arithmetic number, because the mean of its divisors is an integer number (1060112766).

Almost surely, 2^2120225531 is an apocalyptic number.

2120225531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120225531 is an equidigital number, since it uses as much as digits as its factorization.

2120225531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2120225531 is about 46045.9067779102. The cubic root of 2120225531 is about 1284.6772102265.

Adding to 2120225531 its reverse (1355220212), we get a palindrome (3475445743).

The spelling of 2120225531 in words is "two billion, one hundred twenty million, two hundred twenty-five thousand, five hundred thirty-one".