210001012022009 has 16 divisors (see below), whose sum is σ = 241577266411152. Its totient is φ = 180829766627328.

The previous prime is 210001012021987. The next prime is 210001012022069. The reversal of 210001012022009 is 900220210100012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 53929635942400 + 156071376079609 = 7343680^2 + 12492853^2 .

It is not a de Polignac number, because 210001012022009 - 2³² = 209996717054713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210001012022069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4204536194 + ... + 4204586139.

It is an arithmetic number, because the mean of its divisors is an integer number (15098579150697).

Almost surely, 2^{210001012022009} is an apocalyptic number.

It is an amenable number.

210001012022009 is a deficient number, since it is larger than the sum of its proper divisors (31576254389143).

210001012022009 is a wasteful number, since it uses less digits than its factorization.

210001012022009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409122476.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 210001012022009 in words is "two hundred ten trillion, one billion, twelve million, twenty-two thousand, nine".