2121002310101 has 8 divisors (see below), whose sum is σ = 2181749578008. Its totient is φ = 2060684352000.

The previous prime is 2121002310047. The next prime is 2121002310103. The reversal of 2121002310101 is 1010132001212.

It can be written as a sum of positive squares in 4 ways, for example, as 536490327025 + 1584511983076 = 732455^2 + 1258774^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2121002310101 - 2²⁶ = 2120935201237 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 (2121002310103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107317430 + ... + 107337191.

It is an arithmetic number, because the mean of its divisors is an integer number (272718697251).

Almost surely, 2^{2121002310101} is an apocalyptic number.

It is an amenable number.

2121002310101 is a deficient number, since it is larger than the sum of its proper divisors (60747267907).

2121002310101 is a wasteful number, since it uses less digits than its factorization.

2121002310101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214654903.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2121002310101 its reverse (1010132001212), we get a palindrome (3131134311313).

The spelling of 2121002310101 in words is "two trillion, one hundred twenty-one billion, two million, three hundred ten thousand, one hundred one".