2221313101 has 4 divisors (see below), whose sum is σ = 2538643552. Its totient is φ = 1903982652.

The previous prime is 2221313027. The next prime is 2221313173. The reversal of 2221313101 is 1013131222.

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 2221313101 - 2¹⁹ = 2220788813 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 (2221310101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158665215 + ... + 158665228.

It is an arithmetic number, because the mean of its divisors is an integer number (634660888).

Almost surely, 2^2221313101 is an apocalyptic number.

It is an amenable number.

2221313101 is a deficient number, since it is larger than the sum of its proper divisors (317330451).

2221313101 is an equidigital number, since it uses as much as digits as its factorization.

2221313101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317330450.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2221313101 is about 47130.8084059673. The cubic root of 2221313101 is about 1304.7779016540. Note that the first 3 decimals are identical.

Adding to 2221313101 its reverse (1013131222), we get a palindrome (3234444323).

The spelling of 2221313101 in words is "two billion, two hundred twenty-one million, three hundred thirteen thousand, one hundred one".