1210126211 has 8 divisors (see below), whose sum is σ = 1383936000. Its totient is φ = 1036550088.

The previous prime is 1210126133. The next prime is 1210126217. The reversal of 1210126211 is 1126210121.

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

It is not a de Polignac number, because 1210126211 - 2¹⁸ = 1209864067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1210126211.

It is not an unprimeable number, because it can be changed into a prime (1210126217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47171 + ... + 68156.

It is an arithmetic number, because the mean of its divisors is an integer number (172992000).

Almost surely, 2^1210126211 is an apocalyptic number.

1210126211 is a deficient number, since it is larger than the sum of its proper divisors (173809789).

1210126211 is a wasteful number, since it uses less digits than its factorization.

1210126211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116833.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1210126211 is about 34786.8683701192. The cubic root of 1210126211 is about 1065.6392852647.

Adding to 1210126211 its reverse (1126210121), we get a palindrome (2336336332).

The spelling of 1210126211 in words is "one billion, two hundred ten million, one hundred twenty-six thousand, two hundred eleven".