1210212110001 has 16 divisors (see below), whose sum is σ = 1672255022400. Its totient is φ = 777588533568.

The previous prime is 1210212109979. The next prime is 1210212110011. The reversal of 1210212110001 is 1000112120121.

It is not a de Polignac number, because 1210212110001 - 2¹⁰ = 1210212108977 is a prime.

It is a super-2 number, since 2×1210212110001² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1210212110011) 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 15 ways as a sum of consecutive naturals, for example, 12438511 + ... + 12535428.

It is an arithmetic number, because the mean of its divisors is an integer number (104515938900).

Almost surely, 2^{1210212110001} is an apocalyptic number.

It is an amenable number.

1210212110001 is a deficient number, since it is larger than the sum of its proper divisors (462042912399).

1210212110001 is a wasteful number, since it uses less digits than its factorization.

1210212110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24974528.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210212110001 its reverse (1000112120121), we get a palindrome (2210324230122).

The spelling of 1210212110001 in words is "one trillion, two hundred ten billion, two hundred twelve million, one hundred ten thousand, one".