212444332229 has 2 divisors, whose sum is σ = 212444332230. Its totient is φ = 212444332228.

The previous prime is 212444332201. The next prime is 212444332237. The reversal of 212444332229 is 922233444212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133919402500 + 78524929729 = 365950^2 + 280223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212444332229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212444332192 and 212444332201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212444332729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106222166114 + 106222166115.

It is an arithmetic number, because the mean of its divisors is an integer number (106222166115).

Almost surely, 2^212444332229 is an apocalyptic number.

It is an amenable number.

212444332229 is a deficient number, since it is larger than the sum of its proper divisors (1).

212444332229 is an equidigital number, since it uses as much as digits as its factorization.

212444332229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 38.

The spelling of 212444332229 in words is "two hundred twelve billion, four hundred forty-four million, three hundred thirty-two thousand, two hundred twenty-nine".