2100021011101 has 12 divisors (see below), whose sum is σ = 2329450360020. Its totient is φ = 1891200904320.

The previous prime is 2100021011069. The next prime is 2100021011107. The reversal of 2100021011101 is 1011101200012.

It can be written as a sum of positive squares in 6 ways, for example, as 777350805625 + 1322670205476 = 881675^2 + 1150074^2 .

It is not a de Polignac number, because 2100021011101 - 2⁵ = 2100021011069 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 (2100021011107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151531606 + ... + 151545463.

It is an arithmetic number, because the mean of its divisors is an integer number (194120863335).

Almost surely, 2^{2100021011101} is an apocalyptic number.

It is an amenable number.

2100021011101 is a deficient number, since it is larger than the sum of its proper divisors (229429348919).

2100021011101 is a wasteful number, since it uses less digits than its factorization.

2100021011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303077136 (or 303077123 counting only the distinct ones).

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

Adding to 2100021011101 its reverse (1011101200012), we get a palindrome (3111122211113).

The spelling of 2100021011101 in words is "two trillion, one hundred billion, twenty-one million, eleven thousand, one hundred one".