1200020207 has 4 divisors (see below), whose sum is σ = 1204801416. Its totient is φ = 1195239000.

The previous prime is 1200020179. The next prime is 1200020219. The reversal of 1200020207 is 7020200021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7020200021 = 3467 ⋅2024863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200020207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200020191 and 1200020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200020257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2390228 + ... + 2390729.

It is an arithmetic number, because the mean of its divisors is an integer number (301200354).

Almost surely, 2^1200020207 is an apocalyptic number.

1200020207 is a deficient number, since it is larger than the sum of its proper divisors (4781209).

1200020207 is an equidigital number, since it uses as much as digits as its factorization.

1200020207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781208.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 1200020207 is about 34641.3078130720. The cubic root of 1200020207 is about 1062.6645339107.

Adding to 1200020207 its reverse (7020200021), we get a palindrome (8220220228).

The spelling of 1200020207 in words is "one billion, two hundred million, twenty thousand, two hundred seven".