20121201322 has 8 divisors (see below), whose sum is σ = 30188547936. Its totient is φ = 10058352012.

The previous prime is 20121201319. The next prime is 20121201323. The reversal of 20121201322 is 22310212102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20121201296 and 20121201305.

It is not an unprimeable number, because it can be changed into a prime (20121201323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113118 + ... + 1131049.

It is an arithmetic number, because the mean of its divisors is an integer number (3773568492).

Almost surely, 2^20121201322 is an apocalyptic number.

20121201322 is a deficient number, since it is larger than the sum of its proper divisors (10067346614).

20121201322 is a wasteful number, since it uses less digits than its factorization.

20121201322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248652.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20121201322 its reverse (22310212102), we get a palindrome (42431413424).

The spelling of 20121201322 in words is "twenty billion, one hundred twenty-one million, two hundred one thousand, three hundred twenty-two".