2100101210101 has 8 divisors (see below), whose sum is σ = 2106893045304. Its totient is φ = 2093310425280.

The previous prime is 2100101210099. The next prime is 2100101210159. The reversal of 2100101210101 is 1010121010012.

It can be written as a sum of positive squares in 4 ways, for example, as 311927835025 + 1788173375076 = 558505^2 + 1337226^2 .

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 2100101210101 - 2¹ = 2100101210099 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 (2100101210171) 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, 3846331 + ... + 4358263.

It is an arithmetic number, because the mean of its divisors is an integer number (263361630663).

Almost surely, 2^{2100101210101} is an apocalyptic number.

It is an amenable number.

2100101210101 is a deficient number, since it is larger than the sum of its proper divisors (6791835203).

2100101210101 is a wasteful number, since it uses less digits than its factorization.

2100101210101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525191.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 2100101210101 its reverse (1010121010012), we get a palindrome (3110222220113).

The spelling of 2100101210101 in words is "two trillion, one hundred billion, one hundred one million, two hundred ten thousand, one hundred one".