20021020211120 has 40 divisors (see below), whose sum is σ = 48154005513360. Its totient is φ = 7732256080640.

The previous prime is 20021020211117. The next prime is 20021020211197. The reversal of 20021020211120 is 2111202012002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 20021020211095 and 20021020211104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4314872726 + ... + 4314877365.

It is an arithmetic number, because the mean of its divisors is an integer number (1203850137834).

Almost surely, 2^{20021020211120} is an apocalyptic number.

20021020211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021020211120 is an abundant number, since it is smaller than the sum of its proper divisors (28132985302240).

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

20021020211120 is a wasteful number, since it uses less digits than its factorization.

20021020211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8629750133 (or 8629750127 counting only the distinct ones).

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

Adding to 20021020211120 its reverse (2111202012002), we get a palindrome (22132222223122).

The spelling of 20021020211120 in words is "twenty trillion, twenty-one billion, twenty million, two hundred eleven thousand, one hundred twenty".