1232122120020 has 72 divisors (see below), whose sum is σ = 4077204112800. Its totient is φ = 298696271040.

The previous prime is 1232122119983. The next prime is 1232122120051. The reversal of 1232122120020 is 200212212321.

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 = 1232122119975 and 1232122120002.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 311139970 + ... + 311143929.

It is an arithmetic number, because the mean of its divisors is an integer number (56627834900).

Almost surely, 2^{1232122120020} is an apocalyptic number.

1232122120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232122120020 is an abundant number, since it is smaller than the sum of its proper divisors (2845081992780).

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

1232122120020 is a wasteful number, since it uses less digits than its factorization.

1232122120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622283925 (or 622283920 counting only the distinct ones).

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

Adding to 1232122120020 its reverse (200212212321), we get a palindrome (1432334332341).

The spelling of 1232122120020 in words is "one trillion, two hundred thirty-two billion, one hundred twenty-two million, one hundred twenty thousand, twenty".