210201029989 has 2 divisors, whose sum is σ = 210201029990. Its totient is φ = 210201029988.

The previous prime is 210201029981. The next prime is 210201030043. The reversal of 210201029989 is 989920102012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153338812225 + 56862217764 = 391585^2 + 238458^2 .

It is a cyclic number.

It is not a de Polignac number, because 210201029989 - 2³ = 210201029981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210201029981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105100514994 + 105100514995.

It is an arithmetic number, because the mean of its divisors is an integer number (105100514995).

Almost surely, 2^210201029989 is an apocalyptic number.

It is an amenable number.

210201029989 is a deficient number, since it is larger than the sum of its proper divisors (1).

210201029989 is an equidigital number, since it uses as much as digits as its factorization.

210201029989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

The spelling of 210201029989 in words is "two hundred ten billion, two hundred one million, twenty-nine thousand, nine hundred eighty-nine".