3121210012101 has 16 divisors (see below), whose sum is σ = 4171459633920. Its totient is φ = 2075883975360.

The previous prime is 3121210012069. The next prime is 3121210012117. The reversal of 3121210012101 is 1012100121213.

It is not a de Polignac number, because 3121210012101 - 2⁵ = 3121210012069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121210012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38890851 + ... + 38971023.

It is an arithmetic number, because the mean of its divisors is an integer number (260716227120).

Almost surely, 2^{3121210012101} is an apocalyptic number.

It is an amenable number.

3121210012101 is a deficient number, since it is larger than the sum of its proper divisors (1050249621819).

3121210012101 is a wasteful number, since it uses less digits than its factorization.

3121210012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110716.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 3121210012101 its reverse (1012100121213), we get a palindrome (4133310133314).

The spelling of 3121210012101 in words is "three trillion, one hundred twenty-one billion, two hundred ten million, twelve thousand, one hundred one".