21114221313 has 8 divisors (see below), whose sum is σ = 29123064000. Its totient is φ = 13590763088.

The previous prime is 21114221309. The next prime is 21114221327. The reversal of 21114221313 is 31312241112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21114221313 - 2² = 21114221309 is a prime.

It is a super-3 number, since 3×21114221313³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21114221313.

It is not an unprimeable number, because it can be changed into a prime (21114221363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121346013 + ... + 121346186.

It is an arithmetic number, because the mean of its divisors is an integer number (3640383000).

Almost surely, 2^21114221313 is an apocalyptic number.

It is an amenable number.

21114221313 is a deficient number, since it is larger than the sum of its proper divisors (8008842687).

21114221313 is a wasteful number, since it uses less digits than its factorization.

21114221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242692231.

The product of its digits is 288, while the sum is 21.

Adding to 21114221313 its reverse (31312241112), we get a palindrome (52426462425).

The spelling of 21114221313 in words is "twenty-one billion, one hundred fourteen million, two hundred twenty-one thousand, three hundred thirteen".