2218913101 has 4 divisors (see below), whose sum is σ = 2221845052. Its totient is φ = 2215981152.

The previous prime is 2218913093. The next prime is 2218913129. The reversal of 2218913101 is 1013198122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1013198122 = 2 ⋅506599061.

It can be written as a sum of positive squares in 2 ways, for example, as 1161037476 + 1057875625 = 34074^2 + 32525^2 .

It is a cyclic number.

It is not a de Polignac number, because 2218913101 - 2³ = 2218913093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2218913101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218913141) 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, 1464840 + ... + 1466353.

It is an arithmetic number, because the mean of its divisors is an integer number (555461263).

Almost surely, 2^2218913101 is an apocalyptic number.

It is an amenable number.

2218913101 is a deficient number, since it is larger than the sum of its proper divisors (2931951).

2218913101 is an equidigital number, since it uses as much as digits as its factorization.

2218913101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931950.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 2218913101 is about 47105.3404721800. The cubic root of 2218913101 is about 1304.3078200269.

The spelling of 2218913101 in words is "two billion, two hundred eighteen million, nine hundred thirteen thousand, one hundred one".