13121202222 has 48 divisors (see below), whose sum is σ = 29209405680. Its totient is φ = 4255243776.

The previous prime is 13121202217. The next prime is 13121202223. The reversal of 13121202222 is 22220212131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13121202195 and 13121202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121202223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39328 + ... + 166700.

It is an arithmetic number, because the mean of its divisors is an integer number (608529285).

Almost surely, 2^13121202222 is an apocalyptic number.

13121202222 is an abundant number, since it is smaller than the sum of its proper divisors (16088203458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121202222 is a wasteful number, since it uses less digits than its factorization.

13121202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127537 (or 127534 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13121202222 its reverse (22220212131), we get a palindrome (35341414353).

Subtracting 13121202222 from its reverse (22220212131), we obtain a palindrome (9099009909).

The spelling of 13121202222 in words is "thirteen billion, one hundred twenty-one million, two hundred two thousand, two hundred twenty-two".