2101010021101 has 4 divisors (see below), whose sum is σ = 2192358282912. Its totient is φ = 2009661759292.

The previous prime is 2101010021069. The next prime is 2101010021179. The reversal of 2101010021101 is 1011200101012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2101010021101 - 2⁵ = 2101010021069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101010022101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45674130871 + ... + 45674130916.

It is an arithmetic number, because the mean of its divisors is an integer number (548089570728).

Almost surely, 2^{2101010021101} is an apocalyptic number.

It is an amenable number.

2101010021101 is a deficient number, since it is larger than the sum of its proper divisors (91348261811).

2101010021101 is an equidigital number, since it uses as much as digits as its factorization.

2101010021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91348261810.

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

Adding to 2101010021101 its reverse (1011200101012), we get a palindrome (3112210122113).

The spelling of 2101010021101 in words is "two trillion, one hundred one billion, ten million, twenty-one thousand, one hundred one".