212906611 has 2 divisors, whose sum is σ = 212906612. Its totient is φ = 212906610.

The previous prime is 212906549. The next prime is 212906627. The reversal of 212906611 is 116609212.

212906611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212906611 - 2²⁵ = 179352179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212906611.

It is not a weakly prime, because it can be changed into another prime (212906641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106453305 + 106453306.

It is an arithmetic number, because the mean of its divisors is an integer number (106453306).

Almost surely, 2^212906611 is an apocalyptic number.

212906611 is a deficient number, since it is larger than the sum of its proper divisors (1).

212906611 is an equidigital number, since it uses as much as digits as its factorization.

212906611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 212906611 is about 14591.3197141314. The cubic root of 212906611 is about 597.1219678843.

The spelling of 212906611 in words is "two hundred twelve million, nine hundred six thousand, six hundred eleven".