212122011071 has 2 divisors, whose sum is σ = 212122011072. Its totient is φ = 212122011070.

The previous prime is 212122011047. The next prime is 212122011091. The reversal of 212122011071 is 170110221212.

It is a happy number.

It is an a-pointer prime, because the next prime (212122011091) can be obtained adding 212122011071 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212122011071 - 2³⁰ = 211048269247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212122011091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106061005535 + 106061005536.

It is an arithmetic number, because the mean of its divisors is an integer number (106061005536).

Almost surely, 2^212122011071 is an apocalyptic number.

212122011071 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122011071 is an equidigital number, since it uses as much as digits as its factorization.

212122011071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 212122011071 its reverse (170110221212), we get a palindrome (382232232283).

The spelling of 212122011071 in words is "two hundred twelve billion, one hundred twenty-two million, eleven thousand, seventy-one".