212011222120151 has 2 divisors, whose sum is σ = 212011222120152. Its totient is φ = 212011222120150.

The previous prime is 212011222120141. The next prime is 212011222120253. The reversal of 212011222120151 is 151021222110212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212011222120151 - 2²⁶ = 212011155011287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212011222120141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005611060075 + 106005611060076.

It is an arithmetic number, because the mean of its divisors is an integer number (106005611060076).

Almost surely, 2^{212011222120151} is an apocalyptic number.

212011222120151 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011222120151 is an equidigital number, since it uses as much as digits as its factorization.

212011222120151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 212011222120151 its reverse (151021222110212), we get a palindrome (363032444230363).

The spelling of 212011222120151 in words is "two hundred twelve trillion, eleven billion, two hundred twenty-two million, one hundred twenty thousand, one hundred fifty-one".