1266622112 has 48 divisors (see below), whose sum is σ = 2860183872. Its totient is φ = 540879360.

The previous prime is 1266621991. The next prime is 1266622153. The reversal of 1266622112 is 2112266621.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 52883 + ... + 73005.

It is an arithmetic number, because the mean of its divisors is an integer number (59587164).

Almost surely, 2^1266622112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1266622112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430091936).

1266622112 is an abundant number, since it is smaller than the sum of its proper divisors (1593561760).

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

1266622112 is a wasteful number, since it uses less digits than its factorization.

1266622112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20421 (or 20413 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 1266622112 is about 35589.6348955704. The cubic root of 1266622112 is about 1081.9711692087.

Adding to 1266622112 its reverse (2112266621), we get a palindrome (3378888733).

The spelling of 1266622112 in words is "one billion, two hundred sixty-six million, six hundred twenty-two thousand, one hundred twelve".