212651711 has 2 divisors, whose sum is σ = 212651712. Its totient is φ = 212651710.

The previous prime is 212651689. The next prime is 212651713. The reversal of 212651711 is 117156212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212651711 - 2²⁶ = 145542847 is a prime.

Together with 212651713, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212651713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106325855 + 106325856.

It is an arithmetic number, because the mean of its divisors is an integer number (106325856).

Almost surely, 2^212651711 is an apocalyptic number.

212651711 is a deficient number, since it is larger than the sum of its proper divisors (1).

212651711 is an equidigital number, since it uses as much as digits as its factorization.

212651711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 26.

The square root of 212651711 is about 14582.5824530499. The cubic root of 212651711 is about 596.8835735764.

The spelling of 212651711 in words is "two hundred twelve million, six hundred fifty-one thousand, seven hundred eleven".