10001111112020 has 48 divisors (see below), whose sum is σ = 24004304553600. Its totient is φ = 3428718397824.

The previous prime is 10001111112011. The next prime is 10001111112077. The reversal of 10001111112020 is 2021111110001.

It is a junction number, because it is equal to n+sod(n) for n = 10001111111992 and 10001111112010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372119 + ... + 4487838.

It is an arithmetic number, because the mean of its divisors is an integer number (500089678200).

Almost surely, 2^{10001111112020} is an apocalyptic number.

10001111112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10001111112020 is an abundant number, since it is smaller than the sum of its proper divisors (14003193441580).

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

10001111112020 is a wasteful number, since it uses less digits than its factorization.

10001111112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4874672 (or 4874670 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10001111112020 its reverse (2021111110001), we get a palindrome (12022222222021).

The spelling of 10001111112020 in words is "ten trillion, one billion, one hundred eleven million, one hundred twelve thousand, twenty".