2131212200101 has 2 divisors, whose sum is σ = 2131212200102. Its totient is φ = 2131212200100.

The previous prime is 2131212200093. The next prime is 2131212200113. The reversal of 2131212200101 is 1010022121312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1274356507876 + 856855692225 = 1128874^2 + 925665^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131212200101 - 2³ = 2131212200093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131212200171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065606100050 + 1065606100051.

It is an arithmetic number, because the mean of its divisors is an integer number (1065606100051).

Almost surely, 2^{2131212200101} is an apocalyptic number.

It is an amenable number.

2131212200101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131212200101 is an equidigital number, since it uses as much as digits as its factorization.

2131212200101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2131212200101 its reverse (1010022121312), we get a palindrome (3141234321413).

The spelling of 2131212200101 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, two hundred thousand, one hundred one".