1202100010020 has 576 divisors, whose sum is σ = 4851765434880. Its totient is φ = 233784631296.

The previous prime is 1202100009959. The next prime is 1202100010037. The reversal of 1202100010020 is 200100012021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1202100009984 and 1202100010011.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11462944 + ... + 11567336.

It is an arithmetic number, because the mean of its divisors is an integer number (8423203880).

Almost surely, 2^{1202100010020} is an apocalyptic number.

1202100010020 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 1202100010020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2425882717440).

1202100010020 is an abundant number, since it is smaller than the sum of its proper divisors (3649665424860).

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

1202100010020 is a wasteful number, since it uses less digits than its factorization.

1202100010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104484 (or 104479 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1202100010020 its reverse (200100012021), we get a palindrome (1402200022041).

The spelling of 1202100010020 in words is "one trillion, two hundred two billion, one hundred million, ten thousand, twenty".