2102010122101 has 2 divisors, whose sum is σ = 2102010122102. Its totient is φ = 2102010122100.

The previous prime is 2102010122099. The next prime is 2102010122117. The reversal of 2102010122101 is 1012210102012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1340387378001 + 761622744100 = 1157751^2 + 872710^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102010122101 - 2¹ = 2102010122099 is a prime.

Together with 2102010122099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102010122141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051005061050 + 1051005061051.

It is an arithmetic number, because the mean of its divisors is an integer number (1051005061051).

Almost surely, 2^{2102010122101} is an apocalyptic number.

It is an amenable number.

2102010122101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102010122101 is an equidigital number, since it uses as much as digits as its factorization.

2102010122101 is an evil number, because the sum of its binary digits is even.

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

Adding to 2102010122101 its reverse (1012210102012), we get a palindrome (3114220224113).

The spelling of 2102010122101 in words is "two trillion, one hundred two billion, ten million, one hundred twenty-two thousand, one hundred one".