210101001130021 has 16 divisors (see below), whose sum is σ = 222786890726400. Its totient is φ = 197451638684928.

The previous prime is 210101001129991. The next prime is 210101001130037. The reversal of 210101001130021 is 120031100101012.

It is a happy number.

It is not a de Polignac number, because 210101001130021 - 2⁷ = 210101001129893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210101001129983 and 210101001130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210101001130051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31834660 + ... + 37863538.

It is an arithmetic number, because the mean of its divisors is an integer number (13924180670400).

Almost surely, 2^{210101001130021} is an apocalyptic number.

It is an amenable number.

210101001130021 is a deficient number, since it is larger than the sum of its proper divisors (12685889596379).

210101001130021 is a wasteful number, since it uses less digits than its factorization.

210101001130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031908.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 210101001130021 its reverse (120031100101012), we get a palindrome (330132101231033).

The spelling of 210101001130021 in words is "two hundred ten trillion, one hundred one billion, one million, one hundred thirty thousand, twenty-one".