2102152205 has 16 divisors (see below), whose sum is σ = 2615264064. Its totient is φ = 1620923520.

The previous prime is 2102152201. The next prime is 2102152219. The reversal of 2102152205 is 5022512012.

It is a happy number.

It is not a de Polignac number, because 2102152205 - 2² = 2102152201 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 (2102152201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44759 + ... + 78788.

It is an arithmetic number, because the mean of its divisors is an integer number (163454004).

Almost surely, 2^2102152205 is an apocalyptic number.

It is an amenable number.

2102152205 is a deficient number, since it is larger than the sum of its proper divisors (513111859).

2102152205 is a wasteful number, since it uses less digits than its factorization.

2102152205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123676.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2102152205 is about 45849.2334178010. The cubic root of 2102152205 is about 1281.0164868747.

Adding to 2102152205 its reverse (5022512012), we get a palindrome (7124664217).

The spelling of 2102152205 in words is "two billion, one hundred two million, one hundred fifty-two thousand, two hundred five".