2211012025 has 6 divisors (see below), whose sum is σ = 2741654942. Its totient is φ = 1768809600.

The previous prime is 2211012019. The next prime is 2211012029. The reversal of 2211012025 is 5202101122.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 450118656 + 1760893369 = 21216^2 + 41963^2 .

It is not a de Polignac number, because 2211012025 - 2⁷ = 2211011897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211012029) 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 5 ways as a sum of consecutive naturals, for example, 44220216 + ... + 44220265.

Almost surely, 2^2211012025 is an apocalyptic number.

2211012025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2211012025 is a deficient number, since it is larger than the sum of its proper divisors (530642917).

2211012025 is an equidigital number, since it uses as much as digits as its factorization.

2211012025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88440491 (or 88440486 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2211012025 is about 47021.3996495213. The cubic root of 2211012025 is about 1302.7578582788.

Adding to 2211012025 its reverse (5202101122), we get a palindrome (7413113147).

The spelling of 2211012025 in words is "two billion, two hundred eleven million, twelve thousand, twenty-five".