1265233212 has 18 divisors (see below), whose sum is σ = 3198228488. Its totient is φ = 421744392.

The previous prime is 1265233181. The next prime is 1265233219. The reversal of 1265233212 is 2123325621.

It is a happy number.

1265233212 is a `hidden beast` number, since 1 + 2 + 652 + 3 + 3 + 2 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265233219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17572648 + ... + 17572719.

Almost surely, 2^1265233212 is an apocalyptic number.

1265233212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1265233212 is an abundant number, since it is smaller than the sum of its proper divisors (1932995276).

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

1265233212 is a wasteful number, since it uses less digits than its factorization.

1265233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35145377 (or 35145372 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1265233212 is about 35570.1168398418. The cubic root of 1265233212 is about 1081.5755501965.

Adding to 1265233212 its reverse (2123325621), we get a palindrome (3388558833).

The spelling of 1265233212 in words is "one billion, two hundred sixty-five million, two hundred thirty-three thousand, two hundred twelve".