210111000020220 has 48 divisors (see below), whose sum is σ = 633565476986400. Its totient is φ = 51719630774016.

The previous prime is 210111000020209. The next prime is 210111000020237. The reversal of 210111000020220 is 22020000111012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210111000020196 and 210111000020205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134686537695 + ... + 134686539254.

It is an arithmetic number, because the mean of its divisors is an integer number (13199280770550).

Almost surely, 2^{210111000020220} is an apocalyptic number.

210111000020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210111000020220 is an abundant number, since it is smaller than the sum of its proper divisors (423454476966180).

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

210111000020220 is a wasteful number, since it uses less digits than its factorization.

210111000020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269373076974 (or 269373076972 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210111000020220 its reverse (22020000111012), we get a palindrome (232131000131232).

The spelling of 210111000020220 in words is "two hundred ten trillion, one hundred eleven billion, twenty thousand, two hundred twenty".