2101202010121 has 16 divisors (see below), whose sum is σ = 2154153648640. Its totient is φ = 2048997150720.

The previous prime is 2101202010113. The next prime is 2101202010133. The reversal of 2101202010121 is 1210102021012.

It is a cyclic number.

It is not a de Polignac number, because 2101202010121 - 2³ = 2101202010113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101202010421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3450361 + ... + 4013401.

It is an arithmetic number, because the mean of its divisors is an integer number (134634603040).

Almost surely, 2^{2101202010121} is an apocalyptic number.

It is an amenable number.

2101202010121 is a deficient number, since it is larger than the sum of its proper divisors (52951638519).

2101202010121 is an equidigital number, since it uses as much as digits as its factorization.

2101202010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563704.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2101202010121 its reverse (1210102021012), we get a palindrome (3311304031133).

The spelling of 2101202010121 in words is "two trillion, one hundred one billion, two hundred two million, ten thousand, one hundred twenty-one".