11021404220 has 24 divisors (see below), whose sum is σ = 23462006064. Its totient is φ = 4348169856.

The previous prime is 11021404213. The next prime is 11021404223. The reversal of 11021404220 is 2240412011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021404223) 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, 3772994 + ... + 3775913.

It is an arithmetic number, because the mean of its divisors is an integer number (977583586).

Almost surely, 2^11021404220 is an apocalyptic number.

11021404220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021404220 is an abundant number, since it is smaller than the sum of its proper divisors (12440601844).

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

11021404220 is a wasteful number, since it uses less digits than its factorization.

11021404220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7548989 (or 7548987 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11021404220 its reverse (2240412011), we get a palindrome (13261816231).

The spelling of 11021404220 in words is "eleven billion, twenty-one million, four hundred four thousand, two hundred twenty".