101212100220001 has 2 divisors, whose sum is σ = 101212100220002. Its totient is φ = 101212100220000.

The previous prime is 101212100219999. The next prime is 101212100220013. The reversal of 101212100220001 is 100022001212101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71343700110400 + 29868400109601 = 8446520^2 + 5465199^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212100220001 - 2¹ = 101212100219999 is a prime.

Together with 101212100219999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101212100220901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50606050110000 + 50606050110001.

It is an arithmetic number, because the mean of its divisors is an integer number (50606050110001).

Almost surely, 2^{101212100220001} is an apocalyptic number.

It is an amenable number.

101212100220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

101212100220001 is an equidigital number, since it uses as much as digits as its factorization.

101212100220001 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 101212100220001 its reverse (100022001212101), we get a palindrome (201234101432102).

The spelling of 101212100220001 in words is "one hundred one trillion, two hundred twelve billion, one hundred million, two hundred twenty thousand, one".