1022210989 has 2 divisors, whose sum is σ = 1022210990. Its totient is φ = 1022210988.

The previous prime is 1022210971. The next prime is 1022211017. The reversal of 1022210989 is 9890122201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 943534089 + 78676900 = 30717^2 + 8870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022210989 - 2²⁷ = 887993261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022210909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511105494 + 511105495.

It is an arithmetic number, because the mean of its divisors is an integer number (511105495).

Almost surely, 2^1022210989 is an apocalyptic number.

It is an amenable number.

1022210989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022210989 is an equidigital number, since it uses as much as digits as its factorization.

1022210989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1022210989 is about 31972.0344832793. The cubic root of 1022210989 is about 1007.3495152960.

The spelling of 1022210989 in words is "one billion, twenty-two million, two hundred ten thousand, nine hundred eighty-nine".