11241220 has 24 divisors (see below), whose sum is σ = 24369408. Its totient is φ = 4351200.

The previous prime is 11241203. The next prime is 11241221. The reversal of 11241220 is 2214211.

11241220 = T₉₉ + T₁₀₀ + ... + T₄₀₈.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11241220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11241221) 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, 8446 + ... + 9685.

It is an arithmetic number, because the mean of its divisors is an integer number (1015392).

Almost surely, 2^11241220 is an apocalyptic number.

11241220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11241220 is an abundant number, since it is smaller than the sum of its proper divisors (13128188).

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

11241220 is a wasteful number, since it uses less digits than its factorization.

11241220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18171 (or 18169 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 11241220 is about 3352.7928656569. The cubic root of 11241220 is about 224.0119306996.

Adding to 11241220 its reverse (2214211), we get a palindrome (13455431).

The spelling of 11241220 in words is "eleven million, two hundred forty-one thousand, two hundred twenty".