212022324989 has 2 divisors, whose sum is σ = 212022324990. Its totient is φ = 212022324988.

The previous prime is 212022324961. The next prime is 212022324991. The reversal of 212022324989 is 989423220212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201430416100 + 10591908889 = 448810^2 + 102917^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022324989 - 2³² = 207727357693 is a prime.

It is a super-2 number, since 2×212022324989² (a number of 23 digits) contains 22 as substring.

Together with 212022324991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212022324929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011162494 + 106011162495.

It is an arithmetic number, because the mean of its divisors is an integer number (106011162495).

Almost surely, 2^212022324989 is an apocalyptic number.

It is an amenable number.

212022324989 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022324989 is an equidigital number, since it uses as much as digits as its factorization.

212022324989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The spelling of 212022324989 in words is "two hundred twelve billion, twenty-two million, three hundred twenty-four thousand, nine hundred eighty-nine".