212022071 has 2 divisors, whose sum is σ = 212022072. Its totient is φ = 212022070.

The previous prime is 212022067. The next prime is 212022077. The reversal of 212022071 is 170220212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212022071 - 2² = 212022067 is a prime.

It is a super-2 number, since 2×212022071² = 89906717182258082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212022077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011035 + 106011036.

It is an arithmetic number, because the mean of its divisors is an integer number (106011036).

Almost surely, 2^212022071 is an apocalyptic number.

212022071 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022071 is an equidigital number, since it uses as much as digits as its factorization.

212022071 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 17.

The square root of 212022071 is about 14560.9776800873. The cubic root of 212022071 is about 596.2938874238.

Adding to 212022071 its reverse (170220212), we get a palindrome (382242283).

The spelling of 212022071 in words is "two hundred twelve million, twenty-two thousand, seventy-one".