2121003202101 has 32 divisors (see below), whose sum is σ = 3443099735040. Its totient is φ = 1134378359424.

The previous prime is 2121003202093. The next prime is 2121003202141. The reversal of 2121003202101 is 1012023001212.

It is not a de Polignac number, because 2121003202101 - 2³ = 2121003202093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121003202141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31989760 + ... + 32055993.

It is an arithmetic number, because the mean of its divisors is an integer number (107596866720).

Almost surely, 2^{2121003202101} is an apocalyptic number.

2121003202101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2121003202101 is a deficient number, since it is larger than the sum of its proper divisors (1322096532939).

2121003202101 is a wasteful number, since it uses less digits than its factorization.

2121003202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64045865.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2121003202101 its reverse (1012023001212), we get a palindrome (3133026203313).

The spelling of 2121003202101 in words is "two trillion, one hundred twenty-one billion, three million, two hundred two thousand, one hundred one".