1201125012 has 24 divisors (see below), whose sum is σ = 2870982912. Its totient is φ = 390609600.

The previous prime is 1201125011. The next prime is 1201125017. The reversal of 1201125012 is 2105211021.

It is a junction number, because it is equal to n+sod(n) for n = 1201124982 and 1201125000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201125011) 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 7 ways as a sum of consecutive naturals, for example, 1220164 + ... + 1221147.

It is an arithmetic number, because the mean of its divisors is an integer number (119624288).

Almost surely, 2^1201125012 is an apocalyptic number.

1201125012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201125012 is an abundant number, since it is smaller than the sum of its proper divisors (1669857900).

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

1201125012 is a wasteful number, since it uses less digits than its factorization.

1201125012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441359 (or 2441357 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1201125012 is about 34657.2504968297. The cubic root of 1201125012 is about 1062.9905498042.

Adding to 1201125012 its reverse (2105211021), we get a palindrome (3306336033).

The spelling of 1201125012 in words is "one billion, two hundred one million, one hundred twenty-five thousand, twelve".