1200120201 has 36 divisors (see below), whose sum is σ = 2021448000. Its totient is φ = 684110448.

The previous prime is 1200120179. The next prime is 1200120217. The reversal of 1200120201 is 1020210021.

It is not a de Polignac number, because 1200120201 - 2⁵ = 1200120169 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1200120401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 190500 + ... + 196698.

Almost surely, 2^1200120201 is an apocalyptic number.

It is an amenable number.

1200120201 is a deficient number, since it is larger than the sum of its proper divisors (821327799).

1200120201 is a wasteful number, since it uses less digits than its factorization.

1200120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6658 (or 6648 counting only the distinct ones).

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

The square root of 1200120201 is about 34642.7510599259. The cubic root of 1200120201 is about 1062.6940492821.

Adding to 1200120201 its reverse (1020210021), we get a palindrome (2220330222).

The spelling of 1200120201 in words is "one billion, two hundred million, one hundred twenty thousand, two hundred one".