10013121222 has 48 divisors (see below), whose sum is σ = 21726494928. Its totient is φ = 3075096960.

The previous prime is 10013121197. The next prime is 10013121233. The reversal of 10013121222 is 22212131001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 539448 + ... + 557700.

It is an arithmetic number, because the mean of its divisors is an integer number (452635311).

Almost surely, 2^10013121222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10013121222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10863247464).

10013121222 is an abundant number, since it is smaller than the sum of its proper divisors (11713373706).

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

10013121222 is a wasteful number, since it uses less digits than its factorization.

10013121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18825 (or 18812 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10013121222 its reverse (22212131001), we get a palindrome (32225252223).

The spelling of 10013121222 in words is "ten billion, thirteen million, one hundred twenty-one thousand, two hundred twenty-two".