2100002121101 has 8 divisors (see below), whose sum is σ = 2102982458400. Its totient is φ = 2097023468080.

The previous prime is 2100002121023. The next prime is 2100002121181. The reversal of 2100002121101 is 1011212000012.

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 2100002121101 - 2¹⁸ = 2100001858957 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 (2100002121181) 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, 2084915 + ... + 2923503.

It is an arithmetic number, because the mean of its divisors is an integer number (262872807300).

Almost surely, 2^{2100002121101} is an apocalyptic number.

It is an amenable number.

2100002121101 is a deficient number, since it is larger than the sum of its proper divisors (2980337299).

2100002121101 is an equidigital number, since it uses as much as digits as its factorization.

2100002121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842139.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100002121101 its reverse (1011212000012), we get a palindrome (3111214121113).

The spelling of 2100002121101 in words is "two trillion, one hundred billion, two million, one hundred twenty-one thousand, one hundred one".