10001120002020 has 144 divisors (see below), whose sum is σ = 34671646184448. Its totient is φ = 2285897967360.

The previous prime is 10001120001953. The next prime is 10001120002039. The reversal of 10001120002020 is 2020002110001.

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 = 10001120001993 and 10001120002011.

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, 46622610 + ... + 46836630.

Almost surely, 2^{10001120002020} is an apocalyptic number.

10001120002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001120002020 is an abundant number, since it is smaller than the sum of its proper divisors (24670526182428).

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

10001120002020 is a wasteful number, since it uses less digits than its factorization.

10001120002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251130 (or 251125 counting only the distinct ones).

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

Adding to 10001120002020 its reverse (2020002110001), we get a palindrome (12021122112021).

The spelling of 10001120002020 in words is "ten trillion, one billion, one hundred twenty million, two thousand, twenty".