20331212322 has 64 divisors (see below), whose sum is σ = 43944837120. Its totient is φ = 6247777536.

The previous prime is 20331212311. The next prime is 20331212347. The reversal of 20331212322 is 22321213302.

It is a happy number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1013433 + ... + 1033299.

It is an arithmetic number, because the mean of its divisors is an integer number (686638080).

Almost surely, 2^20331212322 is an apocalyptic number.

20331212322 is an abundant number, since it is smaller than the sum of its proper divisors (23613624798).

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

20331212322 is a wasteful number, since it uses less digits than its factorization.

20331212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20095.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20331212322 its reverse (22321213302), we get a palindrome (42652425624).

The spelling of 20331212322 in words is "twenty billion, three hundred thirty-one million, two hundred twelve thousand, three hundred twenty-two".