1211268288 has 112 divisors (see below), whose sum is σ = 3334268160. Its totient is φ = 387609600.

The previous prime is 1211268287. The next prime is 1211268293. The reversal of 1211268288 is 8828621121.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1211268283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1174333 + ... + 1175363.

Almost surely, 2^1211268288 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 1211268288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1667134080).

1211268288 is an abundant number, since it is smaller than the sum of its proper divisors (2122999872).

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

1211268288 is a wasteful number, since it uses less digits than its factorization.

1211268288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1276 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The square root of 1211268288 is about 34803.2798454399. The cubic root of 1211268288 is about 1065.9744182009.

The spelling of 1211268288 in words is "one billion, two hundred eleven million, two hundred sixty-eight thousand, two hundred eighty-eight".