1212010112201 has 6 divisors (see below), whose sum is σ = 1409889314250. Its totient is φ = 1038865810416.

The previous prime is 1212010112171. The next prime is 1212010112207. The reversal of 1212010112201 is 1022110102121.

It can be written as a sum of positive squares in only one way, i.e., 1210387230976 + 1622881225 = 1100176^2 + 40285^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1212010112201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212010112207) 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 5 ways as a sum of consecutive naturals, for example, 12367450076 + ... + 12367450173.

It is an arithmetic number, because the mean of its divisors is an integer number (234981552375).

Almost surely, 2^{1212010112201} is an apocalyptic number.

It is an amenable number.

1212010112201 is a deficient number, since it is larger than the sum of its proper divisors (197879202049).

1212010112201 is an equidigital number, since it uses as much as digits as its factorization.

1212010112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24734900263 (or 24734900256 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212010112201 its reverse (1022110102121), we get a palindrome (2234120214322).

The spelling of 1212010112201 in words is "one trillion, two hundred twelve billion, ten million, one hundred twelve thousand, two hundred one".