210001002100011 has 32 divisors (see below), whose sum is σ = 311790138719040. Its totient is φ = 139695912345600.

The previous prime is 210001002100003. The next prime is 210001002100069. The reversal of 210001002100011 is 110001200100012.

It is a happy number.

It is not a de Polignac number, because 210001002100011 - 2³ = 210001002100003 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 = 210001002099966 and 210001002100002.

It is not an unprimeable number, because it can be changed into a prime (210001002100111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52670731 + ... + 56517323.

It is an arithmetic number, because the mean of its divisors is an integer number (9743441834970).

Almost surely, 2^{210001002100011} is an apocalyptic number.

210001002100011 is a deficient number, since it is larger than the sum of its proper divisors (101789136619029).

210001002100011 is a wasteful number, since it uses less digits than its factorization.

210001002100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3851004 (or 3850998 counting only the distinct ones).

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

Adding to 210001002100011 its reverse (110001200100012), we get a palindrome (320002202200023).

The spelling of 210001002100011 in words is "two hundred ten trillion, one billion, two million, one hundred thousand, eleven".