2101242223 has 4 divisors (see below), whose sum is σ = 2104822440. Its totient is φ = 2097662008.

The previous prime is 2101242181. The next prime is 2101242271. The reversal of 2101242223 is 3222421012.

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

It is a cyclic number.

It is not a de Polignac number, because 2101242223 - 2²⁹ = 1564371311 is a prime.

It is a super-3 number, since 3×2101242223³ (a number of 29 digits) contains 333 as substring.

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 2101242223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101242523) 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, 1789228 + ... + 1790401.

It is an arithmetic number, because the mean of its divisors is an integer number (526205610).

Almost surely, 2^2101242223 is an apocalyptic number.

2101242223 is a deficient number, since it is larger than the sum of its proper divisors (3580217).

2101242223 is an equidigital number, since it uses as much as digits as its factorization.

2101242223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580216.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2101242223 is about 45839.3087098835. The cubic root of 2101242223 is about 1280.8316175797.

Adding to 2101242223 its reverse (3222421012), we get a palindrome (5323663235).

The spelling of 2101242223 in words is "two billion, one hundred one million, two hundred forty-two thousand, two hundred twenty-three".