2113221101 has 4 divisors (see below), whose sum is σ = 2114557632. Its totient is φ = 2111884572.

The previous prime is 2113221083. The next prime is 2113221107. The reversal of 2113221101 is 1011223112.

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 2113221101 - 2¹⁸ = 2112958957 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 (2113221107) 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, 665891 + ... + 669056.

It is an arithmetic number, because the mean of its divisors is an integer number (528639408).

Almost surely, 2^2113221101 is an apocalyptic number.

It is an amenable number.

2113221101 is a deficient number, since it is larger than the sum of its proper divisors (1336531).

2113221101 is a wasteful number, since it uses less digits than its factorization.

2113221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336530.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2113221101 is about 45969.7846525302. The cubic root of 2113221101 is about 1283.2609522491.

Adding to 2113221101 its reverse (1011223112), we get a palindrome (3124444213).

The spelling of 2113221101 in words is "two billion, one hundred thirteen million, two hundred twenty-one thousand, one hundred one".