3212121312101 has 4 divisors (see below), whose sum is σ = 3459207566892. Its totient is φ = 2965035057312.

The previous prime is 3212121312083. The next prime is 3212121312107. The reversal of 3212121312101 is 1012131212123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 405608491876 + 2806512820225 = 636874^2 + 1675265^2 .

It is a cyclic number.

It is not a de Polignac number, because 3212121312101 - 2¹⁸ = 3212121049957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212121312107) 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 3 ways as a sum of consecutive naturals, for example, 123543127376 + ... + 123543127401.

It is an arithmetic number, because the mean of its divisors is an integer number (864801891723).

Almost surely, 2^{3212121312101} is an apocalyptic number.

It is an amenable number.

3212121312101 is a deficient number, since it is larger than the sum of its proper divisors (247086254791).

3212121312101 is a wasteful number, since it uses less digits than its factorization.

3212121312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247086254790.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 3212121312101 its reverse (1012131212123), we get a palindrome (4224252524224).

The spelling of 3212121312101 in words is "three trillion, two hundred twelve billion, one hundred twenty-one million, three hundred twelve thousand, one hundred one".