1201220210 has 8 divisors (see below), whose sum is σ = 2162196396. Its totient is φ = 480488080.

The previous prime is 1201220203. The next prime is 1201220231. The reversal of 1201220210 is 120221021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1127414929 + 73805281 = 33577^2 + 8591^2 .

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 = 1201220191 and 1201220200.

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, 60061001 + ... + 60061020.

Almost surely, 2^1201220210 is an apocalyptic number.

1201220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201220210 is a deficient number, since it is larger than the sum of its proper divisors (960976186).

1201220210 is a wasteful number, since it uses less digits than its factorization.

1201220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120122028.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1201220210 is about 34658.6238907433. The cubic root of 1201220210 is about 1063.0186323380.

Adding to 1201220210 its reverse (120221021), we get a palindrome (1321441231).

The spelling of 1201220210 in words is "one billion, two hundred one million, two hundred twenty thousand, two hundred ten".