2102212105 has 8 divisors (see below), whose sum is σ = 2883033792. Its totient is φ = 1441516848.

The previous prime is 2102212043. The next prime is 2102212109. The reversal of 2102212105 is 5012122012.

It is a happy number.

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 2102212105 - 2⁹ = 2102211593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102212109) 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, 30031567 + ... + 30031636.

It is an arithmetic number, because the mean of its divisors is an integer number (360379224).

Almost surely, 2^2102212105 is an apocalyptic number.

It is an amenable number.

2102212105 is a deficient number, since it is larger than the sum of its proper divisors (780821687).

2102212105 is an equidigital number, since it uses as much as digits as its factorization.

2102212105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60063215.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2102212105 is about 45849.8866410812. The cubic root of 2102212105 is about 1281.0286541128.

Adding to 2102212105 its reverse (5012122012), we get a palindrome (7114334117).

The spelling of 2102212105 in words is "two billion, one hundred two million, two hundred twelve thousand, one hundred five".