210011211009 has 24 divisors (see below), whose sum is σ = 308622038400. Its totient is φ = 137576023200.

The previous prime is 210011210963. The next prime is 210011211017. The reversal of 210011211009 is 900112110012.

It is a happy number.

It is not a de Polignac number, because 210011211009 - 2¹⁵ = 210011178241 is a prime.

It is a super-3 number, since 3×210011211009³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210011210982 and 210011211000.

It is not an unprimeable number, because it can be changed into a prime (210011211089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1185784 + ... + 1351334.

It is an arithmetic number, because the mean of its divisors is an integer number (12859251600).

Almost surely, 2^210011211009 is an apocalyptic number.

It is an amenable number.

210011211009 is a deficient number, since it is larger than the sum of its proper divisors (98610827391).

210011211009 is a wasteful number, since it uses less digits than its factorization.

210011211009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168005 (or 168002 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 210011211009 in words is "two hundred ten billion, eleven million, two hundred eleven thousand, nine".