210041220 has 24 divisors (see below), whose sum is σ = 588115584. Its totient is φ = 56010976.

The previous prime is 210041179. The next prime is 210041263. The reversal of 210041220 is 22140012.

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 = 210041196 and 210041205.

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, 1750284 + ... + 1750403.

It is an arithmetic number, because the mean of its divisors is an integer number (24504816).

Almost surely, 2^210041220 is an apocalyptic number.

210041220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210041220 is an abundant number, since it is smaller than the sum of its proper divisors (378074364).

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

210041220 is a wasteful number, since it uses less digits than its factorization.

210041220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3500699 (or 3500697 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 210041220 is about 14492.7989015235. The cubic root of 210041220 is about 594.4310829643.

Adding to 210041220 its reverse (22140012), we get a palindrome (232181232).

The spelling of 210041220 in words is "two hundred ten million, forty-one thousand, two hundred twenty".