20002111211120 has 80 divisors (see below), whose sum is σ = 47486065920480. Its totient is φ = 7833643241472.

The previous prime is 20002111211119. The next prime is 20002111211149. The reversal of 20002111211120 is 2111211120002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 20002111211095 and 20002111211104.

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, 11699990 + ... + 13300149.

It is an arithmetic number, because the mean of its divisors is an integer number (593575824006).

Almost surely, 2^{20002111211120} is an apocalyptic number.

20002111211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002111211120 is an abundant number, since it is smaller than the sum of its proper divisors (27483954709360).

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

20002111211120 is a wasteful number, since it uses less digits than its factorization.

20002111211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25000362 (or 25000356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20002111211120 its reverse (2111211120002), we get a palindrome (22113322331122).

The spelling of 20002111211120 in words is "twenty trillion, two billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty".