13121322210 has 192 divisors, whose sum is σ = 37121041152. Its totient is φ = 3206573568.

The previous prime is 13121322199. The next prime is 13121322239. The reversal of 13121322210 is 1222312131.

13121322210 is a `hidden beast` number, since 1 + 312 + 132 + 221 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5130252 + ... + 5132808.

It is an arithmetic number, because the mean of its divisors is an integer number (193338756).

Almost surely, 2^13121322210 is an apocalyptic number.

13121322210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13121322210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18560520576).

13121322210 is an abundant number, since it is smaller than the sum of its proper divisors (23999718942).

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

13121322210 is a wasteful number, since it uses less digits than its factorization.

13121322210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2694 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13121322210 its reverse (1222312131), we get a palindrome (14343634341).

The spelling of 13121322210 in words is "thirteen billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred ten".