11214043220 has 12 divisors (see below), whose sum is σ = 23549490804. Its totient is φ = 4485617280.

The previous prime is 11214043201. The next prime is 11214043249. The reversal of 11214043220 is 2234041211.

It can be written as a sum of positive squares in 2 ways, for example, as 4626448324 + 6587594896 = 68018^2 + 81164^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 560702161 = 11214043220 / (1 + 1 + 2 + 1 + 4 + 0 + 4 + 3 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 11214043192 and 11214043201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280351061 + ... + 280351100.

It is an arithmetic number, because the mean of its divisors is an integer number (1962457567).

Almost surely, 2^11214043220 is an apocalyptic number.

11214043220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11214043220 is an abundant number, since it is smaller than the sum of its proper divisors (12335447584).

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

11214043220 is a wasteful number, since it uses less digits than its factorization.

11214043220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560702170 (or 560702168 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11214043220 its reverse (2234041211), we get a palindrome (13448084431).

The spelling of 11214043220 in words is "eleven billion, two hundred fourteen million, forty-three thousand, two hundred twenty".