411121220 has 24 divisors (see below), whose sum is σ = 881725824. Its totient is φ = 160949216.

The previous prime is 411121213. The next prime is 411121229. The reversal of 411121220 is 22121114.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 411121195 and 411121204.

It is not an unprimeable number, because it can be changed into a prime (411121229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217742 + ... + 219621.

It is an arithmetic number, because the mean of its divisors is an integer number (36738576).

Almost surely, 2^411121220 is an apocalyptic number.

It is an amenable number.

411121220 is an abundant number, since it is smaller than the sum of its proper divisors (470604604).

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

411121220 is a wasteful number, since it uses less digits than its factorization.

411121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437419 (or 437417 counting only the distinct ones).

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

The square root of 411121220 is about 20276.1243831261. The cubic root of 411121220 is about 743.5724626733.

Adding to 411121220 its reverse (22121114), we get a palindrome (433242334).

The spelling of 411121220 in words is "four hundred eleven million, one hundred twenty-one thousand, two hundred twenty".