13322121012 has 36 divisors (see below), whose sum is σ = 33682967136. Its totient is φ = 4439704080.

The previous prime is 13322120993. The next prime is 13322121037. The reversal of 13322121012 is 21012122331.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129433 + ... + 208319.

It is an arithmetic number, because the mean of its divisors is an integer number (935637976).

Almost surely, 2^13322121012 is an apocalyptic number.

13322121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13322121012 is an abundant number, since it is smaller than the sum of its proper divisors (20360846124).

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

13322121012 is a wasteful number, since it uses less digits than its factorization.

13322121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83588 (or 83583 counting only the distinct ones).

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

Adding to 13322121012 its reverse (21012122331), we get a palindrome (34334243343).

The spelling of 13322121012 in words is "thirteen billion, three hundred twenty-two million, one hundred twenty-one thousand, twelve".