210100211001 has 12 divisors (see below), whose sum is σ = 305018583012. Its totient is φ = 139355807136.

The previous prime is 210100210961. The next prime is 210100211003. The reversal of 210100211001 is 100112001012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 93300313401 + 116799897600 = 305451^2 + 341760^2 .

It is a de Polignac number, because none of the positive numbers 2^k-210100211001 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (210100211003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59248146 + ... + 59251691.

It is an arithmetic number, because the mean of its divisors is an integer number (25418215251).

Almost surely, 2^210100211001 is an apocalyptic number.

It is an amenable number.

210100211001 is a deficient number, since it is larger than the sum of its proper divisors (94918372011).

210100211001 is a wasteful number, since it uses less digits than its factorization.

210100211001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118500040 (or 118500037 counting only the distinct ones).

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

Adding to 210100211001 its reverse (100112001012), we get a palindrome (310212212013).

The spelling of 210100211001 in words is "two hundred ten billion, one hundred million, two hundred eleven thousand, one".