13140222221 has 8 divisors (see below), whose sum is σ = 15018109824. Its totient is φ = 11262512880.

The previous prime is 13140222211. The next prime is 13140222241. The reversal of 13140222221 is 12222204131.

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 13140222221 - 2⁶ = 13140222157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13140222193 and 13140222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140222211) 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, 211496 + ... + 266478.

It is an arithmetic number, because the mean of its divisors is an integer number (1877263728).

Almost surely, 2^13140222221 is an apocalyptic number.

It is an amenable number.

13140222221 is a deficient number, since it is larger than the sum of its proper divisors (1877887603).

13140222221 is an equidigital number, since it uses as much as digits as its factorization.

13140222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89131.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13140222221 its reverse (12222204131), we get a palindrome (25362426352).

The spelling of 13140222221 in words is "thirteen billion, one hundred forty million, two hundred twenty-two thousand, two hundred twenty-one".