13122212222 has 16 divisors (see below), whose sum is σ = 22498154592. Its totient is φ = 5623071840.

The previous prime is 13122212221. The next prime is 13122212249. The reversal of 13122212222 is 22221222131.

It is a junction number, because it is equal to n+sod(n) for n = 13122212194 and 13122212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122212221) 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, 58088 + ... + 172100.

It is an arithmetic number, because the mean of its divisors is an integer number (1406134662).

Almost surely, 2^13122212222 is an apocalyptic number.

13122212222 is a deficient number, since it is larger than the sum of its proper divisors (9375942370).

13122212222 is a wasteful number, since it uses less digits than its factorization.

13122212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122243.

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

Adding to 13122212222 its reverse (22221222131), we get a palindrome (35343434353).

Subtracting 13122212222 from its reverse (22221222131), we obtain a palindrome (9099009909).

The spelling of 13122212222 in words is "thirteen billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".