210120201009 has 16 divisors (see below), whose sum is σ = 311596521600. Its totient is φ = 139941833328.

The previous prime is 210120200989. The next prime is 210120201013. The reversal of 210120201009 is 900102021012.

It is not a de Polignac number, because 210120201009 - 2⁵ = 210120200977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210120200982 and 210120201000.

It is not an unprimeable number, because it can be changed into a prime (210120211009) 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, 3813829 + ... + 3868530.

It is an arithmetic number, because the mean of its divisors is an integer number (19474782600).

Almost surely, 2^210120201009 is an apocalyptic number.

It is an amenable number.

210120201009 is a deficient number, since it is larger than the sum of its proper divisors (101476320591).

210120201009 is a wasteful number, since it uses less digits than its factorization.

210120201009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7683381 (or 7683375 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 210120201009 in words is "two hundred ten billion, one hundred twenty million, two hundred one thousand, nine".