10212213989 has 2 divisors, whose sum is σ = 10212213990. Its totient is φ = 10212213988.

The previous prime is 10212213983. The next prime is 10212214013. The reversal of 10212213989 is 98931221201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10147540225 + 64673764 = 100735^2 + 8042^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212213989 - 2⁸ = 10212213733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212213983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106106994 + 5106106995.

It is an arithmetic number, because the mean of its divisors is an integer number (5106106995).

Almost surely, 2^10212213989 is an apocalyptic number.

It is an amenable number.

10212213989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212213989 is an equidigital number, since it uses as much as digits as its factorization.

10212213989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 10212213989 in words is "ten billion, two hundred twelve million, two hundred thirteen thousand, nine hundred eighty-nine".