11227820 has 24 divisors (see below), whose sum is σ = 24966144. Its totient is φ = 4226816.

The previous prime is 11227819. The next prime is 11227849. The reversal of 11227820 is 2872211.

11227820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 15.

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, 16172 + ... + 16851.

It is an arithmetic number, because the mean of its divisors is an integer number (1040256).

Almost surely, 2^11227820 is an apocalyptic number.

11227820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11227820 is an abundant number, since it is smaller than the sum of its proper divisors (13738324).

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

11227820 is a wasteful number, since it uses less digits than its factorization.

11227820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33049 (or 33047 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 11227820 is about 3350.7939357710. The cubic root of 11227820 is about 223.9228848071.

The spelling of 11227820 in words is "eleven million, two hundred twenty-seven thousand, eight hundred twenty".