20331204433122 has 64 divisors (see below), whose sum is σ = 46527200077824. Its totient is φ = 5866916610240.

The previous prime is 20331204433091. The next prime is 20331204433147. The reversal of 20331204433122 is 22133440213302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20331204433122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88455828 + ... + 88685375.

It is an arithmetic number, because the mean of its divisors is an integer number (726987501216).

Almost surely, 2^{20331204433122} is an apocalyptic number.

20331204433122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20331204433122 is an abundant number, since it is smaller than the sum of its proper divisors (26195995644702).

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

20331204433122 is a wasteful number, since it uses less digits than its factorization.

20331204433122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177141303.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 20331204433122 its reverse (22133440213302), we get a palindrome (42464644646424).

The spelling of 20331204433122 in words is "twenty trillion, three hundred thirty-one billion, two hundred four million, four hundred thirty-three thousand, one hundred twenty-two".