1201125516 has 12 divisors (see below), whose sum is σ = 2802626232. Its totient is φ = 400375168.

The previous prime is 1201125469. The next prime is 1201125529. The reversal of 1201125516 is 6155211021.

1201125516 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50046885 + ... + 50046908.

It is an arithmetic number, because the mean of its divisors is an integer number (233552186).

Almost surely, 2^1201125516 is an apocalyptic number.

It is an amenable number.

1201125516 is an abundant number, since it is smaller than the sum of its proper divisors (1601500716).

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

1201125516 is a wasteful number, since it uses less digits than its factorization.

1201125516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100093800 (or 100093798 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1201125516 is about 34657.2577680347. The cubic root of 1201125516 is about 1062.9906984835.

Adding to 1201125516 its reverse (6155211021), we get a palindrome (7356336537).

The spelling of 1201125516 in words is "one billion, two hundred one million, one hundred twenty-five thousand, five hundred sixteen".