1200001210 has 8 divisors (see below), whose sum is σ = 2160002196. Its totient is φ = 480000480.

The previous prime is 1200001193. The next prime is 1200001247. The reversal of 1200001210 is 121000021.

It can be written as a sum of positive squares in 2 ways, for example, as 1199167641 + 833569 = 34629^2 + 913^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1200001193 and 1200001202.

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, 60000051 + ... + 60000070.

Almost surely, 2^1200001210 is an apocalyptic number.

1200001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200001210 is a deficient number, since it is larger than the sum of its proper divisors (960000986).

1200001210 is a wasteful number, since it uses less digits than its factorization.

1200001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120000128.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1200001210 is about 34641.0336162188. The cubic root of 1200001210 is about 1062.6589263538.

Adding to 1200001210 its reverse (121000021), we get a palindrome (1321001231).

The spelling of 1200001210 in words is "one billion, two hundred million, one thousand, two hundred ten".