12121202322 has 24 divisors (see below), whose sum is σ = 26463088080. Its totient is φ = 4009557240.

The previous prime is 12121202293. The next prime is 12121202329. The reversal of 12121202322 is 22320212121.

12121202322 is a `hidden beast` number, since 121 + 21 + 202 + 322 = 666.

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 = 12121202295 and 12121202304.

It is not an unprimeable number, because it can be changed into a prime (12121202329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2567872 + ... + 2572587.

It is an arithmetic number, because the mean of its divisors is an integer number (1102628670).

Almost surely, 2^12121202322 is an apocalyptic number.

12121202322 is an abundant number, since it is smaller than the sum of its proper divisors (14341885758).

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

12121202322 is a wasteful number, since it uses less digits than its factorization.

12121202322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140598 (or 5140595 counting only the distinct ones).

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

Adding to 12121202322 its reverse (22320212121), we get a palindrome (34441414443).

The spelling of 12121202322 in words is "twelve billion, one hundred twenty-one million, two hundred two thousand, three hundred twenty-two".