20331120321212 has 12 divisors (see below), whose sum is σ = 35765740461696. Its totient is φ = 10112337332160.

The previous prime is 20331120321209. The next prime is 20331120321227. The reversal of 20331120321212 is 21212302113302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13305706253 + ... + 13305707780.

It is an arithmetic number, because the mean of its divisors is an integer number (2980478371808).

Almost surely, 2^{20331120321212} is an apocalyptic number.

It is an amenable number.

20331120321212 is a deficient number, since it is larger than the sum of its proper divisors (15434620140484).

20331120321212 is a wasteful number, since it uses less digits than its factorization.

20331120321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26611414228 (or 26611414226 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20331120321212 its reverse (21212302113302), we get a palindrome (41543422434514).

The spelling of 20331120321212 in words is "twenty trillion, three hundred thirty-one billion, one hundred twenty million, three hundred twenty-one thousand, two hundred twelve".