2101222113 has 4 divisors (see below), whose sum is σ = 2801629488. Its totient is φ = 1400814740.

The previous prime is 2101222111. The next prime is 2101222121. The reversal of 2101222113 is 3112221012.

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 2101222113 - 2¹ = 2101222111 is a prime.

It is a super-3 number, since 3×2101222113³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101222092 and 2101222101.

It is not an unprimeable number, because it can be changed into a prime (2101222111) 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, 350203683 + ... + 350203688.

It is an arithmetic number, because the mean of its divisors is an integer number (700407372).

Almost surely, 2^2101222113 is an apocalyptic number.

It is an amenable number.

2101222113 is a deficient number, since it is larger than the sum of its proper divisors (700407375).

2101222113 is an equidigital number, since it uses as much as digits as its factorization.

2101222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700407374.

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

The square root of 2101222113 is about 45839.0893561380. The cubic root of 2101222113 is about 1280.8275314879.

Adding to 2101222113 its reverse (3112221012), we get a palindrome (5213443125).

The spelling of 2101222113 in words is "two billion, one hundred one million, two hundred twenty-two thousand, one hundred thirteen".