2102210113 has 4 divisors (see below), whose sum is σ = 2111232708. Its totient is φ = 2093187520.

The previous prime is 2102210111. The next prime is 2102210119. The reversal of 2102210113 is 3110122012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 497646864 + 1604563249 = 22308^2 + 40057^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102210113 - 2¹ = 2102210111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102210093 and 2102210102.

It is not an unprimeable number, because it can be changed into a prime (2102210111) 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, 4510948 + ... + 4511413.

It is an arithmetic number, because the mean of its divisors is an integer number (527808177).

Almost surely, 2^2102210113 is an apocalyptic number.

It is an amenable number.

2102210113 is a deficient number, since it is larger than the sum of its proper divisors (9022595).

2102210113 is an equidigital number, since it uses as much as digits as its factorization.

2102210113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9022594.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2102210113 is about 45849.8649180126. The cubic root of 2102210113 is about 1281.0282494898.

Adding to 2102210113 its reverse (3110122012), we get a palindrome (5212332125).

The spelling of 2102210113 in words is "two billion, one hundred two million, two hundred ten thousand, one hundred thirteen".