1200201012 has 18 divisors (see below), whose sum is σ = 3033841538. Its totient is φ = 400066992.

The previous prime is 1200201007. The next prime is 1200201029. The reversal of 1200201012 is 2101020021.

It can be written as a sum of positive squares in only one way, i.e., 615238416 + 584962596 = 24804^2 + 24186^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1200200985 and 1200201003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16669423 + ... + 16669494.

Almost surely, 2^1200201012 is an apocalyptic number.

1200201012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200201012 is an abundant number, since it is smaller than the sum of its proper divisors (1833640526).

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

1200201012 is a wasteful number, since it uses less digits than its factorization.

1200201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33338927 (or 33338922 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1200201012 is about 34643.9173881938. The cubic root of 1200201012 is about 1062.7179011821.

Adding to 1200201012 its reverse (2101020021), we get a palindrome (3301221033).

The spelling of 1200201012 in words is "one billion, two hundred million, two hundred one thousand, twelve".