1202020322100 has 144 divisors (see below), whose sum is σ = 3866190881280. Its totient is φ = 286337318400.

The previous prime is 1202020322099. The next prime is 1202020322117. The reversal of 1202020322100 is 12230202021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1202020322100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4850235 + ... + 5092034.

Almost surely, 2^{1202020322100} is an apocalyptic number.

1202020322100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202020322100 is an abundant number, since it is smaller than the sum of its proper divisors (2664170559180).

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

1202020322100 is a wasteful number, since it uses less digits than its factorization.

1202020322100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942330 (or 9942323 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1202020322100 its reverse (12230202021), we get a palindrome (1214250524121).

The spelling of 1202020322100 in words is "one trillion, two hundred two billion, twenty million, three hundred twenty-two thousand, one hundred".