1200210122 has 8 divisors (see below), whose sum is σ = 1834283556. Its totient is φ = 588782272.

The previous prime is 1200210113. The next prime is 1200210131. The reversal of 1200210122 is 2210120021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1200210113) and next prime (1200210131).

It can be written as a sum of positive squares in 2 ways, for example, as 940710241 + 259499881 = 30671^2 + 16109^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5661263 + ... + 5661474.

Almost surely, 2^1200210122 is an apocalyptic number.

1200210122 is a deficient number, since it is larger than the sum of its proper divisors (634073434).

1200210122 is a wasteful number, since it uses less digits than its factorization.

1200210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322792.

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

The square root of 1200210122 is about 34644.0488684565. The cubic root of 1200210122 is about 1062.7205899916.

Adding to 1200210122 its reverse (2210120021), we get a palindrome (3410330143).

The spelling of 1200210122 in words is "one billion, two hundred million, two hundred ten thousand, one hundred twenty-two".