211213213122071 has 2 divisors, whose sum is σ = 211213213122072. Its totient is φ = 211213213122070.

The previous prime is 211213213121879. The next prime is 211213213122161. The reversal of 211213213122071 is 170221312312112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211213213122071 - 2¹⁰ = 211213213121047 is a prime.

It is a super-2 number, since 2×211213213122071² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211213213122271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606606561035 + 105606606561036.

It is an arithmetic number, because the mean of its divisors is an integer number (105606606561036).

Almost surely, 2^{211213213122071} is an apocalyptic number.

211213213122071 is a deficient number, since it is larger than the sum of its proper divisors (1).

211213213122071 is an equidigital number, since it uses as much as digits as its factorization.

211213213122071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

Adding to 211213213122071 its reverse (170221312312112), we get a palindrome (381434525434183).

The spelling of 211213213122071 in words is "two hundred eleven trillion, two hundred thirteen billion, two hundred thirteen million, one hundred twenty-two thousand, seventy-one".