2102212113 has 4 divisors (see below), whose sum is σ = 2802949488. Its totient is φ = 1401474740.

The previous prime is 2102212109. The next prime is 2102212157. The reversal of 2102212113 is 3112122012.

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 2102212113 - 2² = 2102212109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102212092 and 2102212101.

It is not an unprimeable number, because it can be changed into a prime (2102212613) 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, 350368683 + ... + 350368688.

It is an arithmetic number, because the mean of its divisors is an integer number (700737372).

Almost surely, 2^2102212113 is an apocalyptic number.

It is an amenable number.

2102212113 is a deficient number, since it is larger than the sum of its proper divisors (700737375).

2102212113 is an equidigital number, since it uses as much as digits as its factorization.

2102212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700737374.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2102212113 is about 45849.8867283225. The cubic root of 2102212113 is about 1281.0286557378.

Adding to 2102212113 its reverse (3112122012), we get a palindrome (5214334125).

The spelling of 2102212113 in words is "two billion, one hundred two million, two hundred twelve thousand, one hundred thirteen".