210020100101 has 16 divisors (see below), whose sum is σ = 254584450560. Its totient is φ = 169240771440.

The previous prime is 210020100097. The next prime is 210020100113. The reversal of 210020100101 is 101001020012.

It is a cyclic number.

It is not a de Polignac number, because 210020100101 - 2² = 210020100097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020100181) 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, 6009671 + ... + 6044516.

It is an arithmetic number, because the mean of its divisors is an integer number (15911528160).

Almost surely, 2^210020100101 is an apocalyptic number.

It is an amenable number.

210020100101 is a deficient number, since it is larger than the sum of its proper divisors (44564350459).

210020100101 is a wasteful number, since it uses less digits than its factorization.

210020100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12054344.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 210020100101 its reverse (101001020012), we get a palindrome (311021120113).

The spelling of 210020100101 in words is "two hundred ten billion, twenty million, one hundred thousand, one hundred one".