20101212101051 has 2 divisors, whose sum is σ = 20101212101052. Its totient is φ = 20101212101050.

The previous prime is 20101212100999. The next prime is 20101212101053. The reversal of 20101212101051 is 15010121210102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20101212101051 - 2³⁰ = 20100138359227 is a prime.

Together with 20101212101053, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20101212101053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050606050525 + 10050606050526.

It is an arithmetic number, because the mean of its divisors is an integer number (10050606050526).

Almost surely, 2^{20101212101051} is an apocalyptic number.

20101212101051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101212101051 is an equidigital number, since it uses as much as digits as its factorization.

20101212101051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 20101212101051 its reverse (15010121210102), we get a palindrome (35111333311153).

The spelling of 20101212101051 in words is "twenty trillion, one hundred one billion, two hundred twelve million, one hundred one thousand, fifty-one".