2101200212205 has 12 divisors (see below), whose sum is σ = 3642080367900. Its totient is φ = 1120640113152.

The previous prime is 2101200212173. The next prime is 2101200212213. The reversal of 2101200212205 is 5022120021012.

It can be written as a sum of positive squares in 2 ways, for example, as 1416723628644 + 684476583561 = 1190262^2 + 827331^2 .

It is not a de Polignac number, because 2101200212205 - 2⁵ = 2101200212173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23346668980 + ... + 23346669069.

It is an arithmetic number, because the mean of its divisors is an integer number (303506697325).

Almost surely, 2^{2101200212205} is an apocalyptic number.

It is an amenable number.

2101200212205 is a deficient number, since it is larger than the sum of its proper divisors (1540880155695).

2101200212205 is a wasteful number, since it uses less digits than its factorization.

2101200212205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46693338060 (or 46693338057 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 2101200212205 its reverse (5022120021012), we get a palindrome (7123320233217).

The spelling of 2101200212205 in words is "two trillion, one hundred one billion, two hundred million, two hundred twelve thousand, two hundred five".