1201265112 has 16 divisors (see below), whose sum is σ = 3003162840. Its totient is φ = 400421696.

The previous prime is 1201265083. The next prime is 1201265119. The reversal of 1201265112 is 2115621021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201265119) 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 3 ways as a sum of consecutive naturals, for example, 25026333 + ... + 25026380.

Almost surely, 2^1201265112 is an apocalyptic number.

1201265112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201265112 is an abundant number, since it is smaller than the sum of its proper divisors (1801897728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201265112 is a wasteful number, since it uses less digits than its factorization.

1201265112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50052722 (or 50052718 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1201265112 is about 34659.2716599758. The cubic root of 1201265112 is about 1063.0318774997.

Adding to 1201265112 its reverse (2115621021), we get a palindrome (3316886133).

The spelling of 1201265112 in words is "one billion, two hundred one million, two hundred sixty-five thousand, one hundred twelve".