212106151 has 2 divisors, whose sum is σ = 212106152. Its totient is φ = 212106150.

The previous prime is 212106133. The next prime is 212106197. The reversal of 212106151 is 151601212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212106151 - 2¹³ = 212097959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212106451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106053075 + 106053076.

It is an arithmetic number, because the mean of its divisors is an integer number (106053076).

Almost surely, 2^212106151 is an apocalyptic number.

212106151 is a deficient number, since it is larger than the sum of its proper divisors (1).

212106151 is an equidigital number, since it uses as much as digits as its factorization.

212106151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 212106151 is about 14563.8645626770. The cubic root of 212106151 is about 596.3726996026.

Adding to 212106151 its reverse (151601212), we get a palindrome (363707363).

It can be divided in two parts, 212106 and 151, that multiplied together give a triangular number (32028006 = T₈₀₀₃).

The spelling of 212106151 in words is "two hundred twelve million, one hundred six thousand, one hundred fifty-one".