13322222221 has 16 divisors (see below), whose sum is σ = 16612755840. Its totient is φ = 10378932480.

The previous prime is 13322222201. The next prime is 13322222231. The reversal of 13322222221 is 12222222331.

It is not a de Polignac number, because 13322222221 - 2¹⁷ = 13322091149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13322222192 and 13322222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13322222201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473665 + ... + 501001.

It is an arithmetic number, because the mean of its divisors is an integer number (1038297240).

Almost surely, 2^13322222221 is an apocalyptic number.

13322222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13322222221 is a deficient number, since it is larger than the sum of its proper divisors (3290533619).

13322222221 is a wasteful number, since it uses less digits than its factorization.

13322222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33684.

The product of its digits is 1152, while the sum is 22.

Adding to 13322222221 its reverse (12222222331), we get a palindrome (25544444552).

The spelling of 13322222221 in words is "thirteen billion, three hundred twenty-two million, two hundred twenty-two thousand, two hundred twenty-one".