210110211201220 has 48 divisors (see below), whose sum is σ = 481427238954816. Its totient is φ = 76390404272000.

The previous prime is 210110211201173. The next prime is 210110211201227. The reversal of 210110211201220 is 22102112011012.

It is a junction number, because it is equal to n+sod(n) for n = 210110211201194 and 210110211201203.

It is not an unprimeable number, because it can be changed into a prime (210110211201227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81914686 + ... + 84440725.

It is an arithmetic number, because the mean of its divisors is an integer number (10029734144892).

Almost surely, 2^{210110211201220} is an apocalyptic number.

210110211201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210110211201220 is an abundant number, since it is smaller than the sum of its proper divisors (271317027753596).

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

210110211201220 is a wasteful number, since it uses less digits than its factorization.

210110211201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166361172 (or 166361170 counting only the distinct ones).

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

Adding to 210110211201220 its reverse (22102112011012), we get a palindrome (232212323212232).

The spelling of 210110211201220 in words is "two hundred ten trillion, one hundred ten billion, two hundred eleven million, two hundred one thousand, two hundred twenty".