210001111212101 has 8 divisors (see below), whose sum is σ = 229562536361664. Its totient is φ = 190518088569120.

The previous prime is 210001111212041. The next prime is 210001111212121. The reversal of 210001111212101 is 101212111100012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210001111212101 - 2¹⁰ = 210001111211077 is a prime.

It is a super-3 number, since 3×210001111212101³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210001111212121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19600621040 + ... + 19600631753.

It is an arithmetic number, because the mean of its divisors is an integer number (28695317045208).

Almost surely, 2^{210001111212101} is an apocalyptic number.

It is an amenable number.

210001111212101 is a deficient number, since it is larger than the sum of its proper divisors (19561425149563).

210001111212101 is a wasteful number, since it uses less digits than its factorization.

210001111212101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39201253291.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 210001111212101 its reverse (101212111100012), we get a palindrome (311213222312113).

The spelling of 210001111212101 in words is "two hundred ten trillion, one billion, one hundred eleven million, two hundred twelve thousand, one hundred one".