21614214203 has 4 divisors (see below), whose sum is σ = 21619620408. Its totient is φ = 21608808000.

The previous prime is 21614214091. The next prime is 21614214211. The reversal of 21614214203 is 30241241612.

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 21614214203 - 2¹⁴ = 21614197819 is a prime.

It is a super-2 number, since 2×21614214203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21614214233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2697101 + ... + 2705102.

It is an arithmetic number, because the mean of its divisors is an integer number (5404905102).

Almost surely, 2^21614214203 is an apocalyptic number.

21614214203 is a deficient number, since it is larger than the sum of its proper divisors (5406205).

21614214203 is an equidigital number, since it uses as much as digits as its factorization.

21614214203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406204.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 21614214203 its reverse (30241241612), we get a palindrome (51855455815).

The spelling of 21614214203 in words is "twenty-one billion, six hundred fourteen million, two hundred fourteen thousand, two hundred three".