20021200211120 has 20 divisors (see below), whose sum is σ = 46549290491040. Its totient is φ = 8008480084416.

The previous prime is 20021200211101. The next prime is 20021200211209. The reversal of 20021200211120 is 2111200212002.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 20021200211095 and 20021200211104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125132501240 + ... + 125132501399.

It is an arithmetic number, because the mean of its divisors is an integer number (2327464524552).

Almost surely, 2^{20021200211120} is an apocalyptic number.

20021200211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021200211120 is an abundant number, since it is smaller than the sum of its proper divisors (26528090279920).

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

20021200211120 is a wasteful number, since it uses less digits than its factorization.

20021200211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250265002652 (or 250265002646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20021200211120 its reverse (2111200212002), we get a palindrome (22132400423122).

The spelling of 20021200211120 in words is "twenty trillion, twenty-one billion, two hundred million, two hundred eleven thousand, one hundred twenty".