210001201011 has 48 divisors (see below), whose sum is σ = 348251467200. Its totient is φ = 119453978880.

The previous prime is 210001200989. The next prime is 210001201031. The reversal of 210001201011 is 110102100012.

It is a happy number.

It is not a de Polignac number, because 210001201011 - 2⁶ = 210001200947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 210001200984 and 210001201002.

It is not an unprimeable number, because it can be changed into a prime (210001201031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13470241 + ... + 13485821.

It is an arithmetic number, because the mean of its divisors is an integer number (7255238900).

Almost surely, 2^210001201011 is an apocalyptic number.

210001201011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

210001201011 is a deficient number, since it is larger than the sum of its proper divisors (138250266189).

210001201011 is a wasteful number, since it uses less digits than its factorization.

210001201011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16556 (or 16553 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 210001201011 its reverse (110102100012), we get a palindrome (320103301023).

The spelling of 210001201011 in words is "two hundred ten billion, one million, two hundred one thousand, eleven".