1202122131320 has 128 divisors (see below), whose sum is σ = 2997121798080. Its totient is φ = 430302720000.

The previous prime is 1202122131257. The next prime is 1202122131373. The reversal of 1202122131320 is 231312212021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1202122131292 and 1202122131301.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7609940 + ... + 7766300.

Almost surely, 2^{1202122131320} is an apocalyptic number.

1202122131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202122131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498560899040).

1202122131320 is an abundant number, since it is smaller than the sum of its proper divisors (1794999666760).

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

1202122131320 is a wasteful number, since it uses less digits than its factorization.

1202122131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156657 (or 156653 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1202122131320 its reverse (231312212021), we get a palindrome (1433434343341).

The spelling of 1202122131320 in words is "one trillion, two hundred two billion, one hundred twenty-two million, one hundred thirty-one thousand, three hundred twenty".