212101023061 has 2 divisors, whose sum is σ = 212101023062. Its totient is φ = 212101023060.

The previous prime is 212101023059. The next prime is 212101023137. The reversal of 212101023061 is 160320101212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122355842436 + 89745180625 = 349794^2 + 299575^2 .

It is a cyclic number.

It is not a de Polignac number, because 212101023061 - 2¹ = 212101023059 is a prime.

Together with 212101023059, 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 (212101023031) 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 as a sum of consecutive naturals, namely, 106050511530 + 106050511531.

It is an arithmetic number, because the mean of its divisors is an integer number (106050511531).

Almost surely, 2^212101023061 is an apocalyptic number.

It is an amenable number.

212101023061 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101023061 is an equidigital number, since it uses as much as digits as its factorization.

212101023061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212101023061 its reverse (160320101212), we get a palindrome (372421124273).

The spelling of 212101023061 in words is "two hundred twelve billion, one hundred one million, twenty-three thousand, sixty-one".