210021201211120 has 80 divisors (see below), whose sum is σ = 525865808184192. Its totient is φ = 77545547735040.

The previous prime is 210021201211111. The next prime is 210021201211123. The reversal of 210021201211120 is 21112102120012.

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

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 210021201211094 and 210021201211103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021201211123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114405609 + ... + 116226871.

Almost surely, 2^{210021201211120} is an apocalyptic number.

210021201211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210021201211120 is an abundant number, since it is smaller than the sum of its proper divisors (315844606973072).

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

210021201211120 is a wasteful number, since it uses less digits than its factorization.

210021201211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932170 (or 1932164 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210021201211120 its reverse (21112102120012), we get a palindrome (231133303331132).

The spelling of 210021201211120 in words is "two hundred ten trillion, twenty-one billion, two hundred one million, two hundred eleven thousand, one hundred twenty".