2012257105 has 32 divisors (see below), whose sum is σ = 2590838784. Its totient is φ = 1495044096.

The previous prime is 2012257061. The next prime is 2012257109. The reversal of 2012257105 is 5017522102.

It is a cyclic number.

It is not a de Polignac number, because 2012257105 - 2⁷ = 2012256977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012257105.

It is not an unprimeable number, because it can be changed into a prime (2012257109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3678442 + ... + 3678988.

It is an arithmetic number, because the mean of its divisors is an integer number (80963712).

Almost surely, 2^2012257105 is an apocalyptic number.

It is an amenable number.

2012257105 is a deficient number, since it is larger than the sum of its proper divisors (578581679).

2012257105 is a wasteful number, since it uses less digits than its factorization.

2012257105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 2012257105 is about 44858.1888287969. The cubic root of 2012257105 is about 1262.4896405385.

Adding to 2012257105 its reverse (5017522102), we get a palindrome (7029779207).

The spelling of 2012257105 in words is "two billion, twelve million, two hundred fifty-seven thousand, one hundred five".