212335439971 has 2 divisors, whose sum is σ = 212335439972. Its totient is φ = 212335439970.

The previous prime is 212335439903. The next prime is 212335440041. The reversal of 212335439971 is 179934533212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212335439971 - 2²⁵ = 212301885539 is a prime.

It is not a weakly prime, because it can be changed into another prime (212335239971) 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, 106167719985 + 106167719986.

It is an arithmetic number, because the mean of its divisors is an integer number (106167719986).

Almost surely, 2^212335439971 is an apocalyptic number.

212335439971 is a deficient number, since it is larger than the sum of its proper divisors (1).

212335439971 is an equidigital number, since it uses as much as digits as its factorization.

212335439971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 49.

The spelling of 212335439971 in words is "two hundred twelve billion, three hundred thirty-five million, four hundred thirty-nine thousand, nine hundred seventy-one".