212021112071 has 2 divisors, whose sum is σ = 212021112072. Its totient is φ = 212021112070.

The previous prime is 212021112067. The next prime is 212021112109. The reversal of 212021112071 is 170211120212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021112071 - 2² = 212021112067 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021112871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010556035 + 106010556036.

It is an arithmetic number, because the mean of its divisors is an integer number (106010556036).

Almost surely, 2^212021112071 is an apocalyptic number.

212021112071 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021112071 is an equidigital number, since it uses as much as digits as its factorization.

212021112071 is an evil number, because the sum of its binary digits is even.

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

Adding to 212021112071 its reverse (170211120212), we get a palindrome (382232232283).

The spelling of 212021112071 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, seventy-one".