11000504220 has 48 divisors (see below), whose sum is σ = 31118968608. Its totient is φ = 2903224320.

The previous prime is 11000504173. The next prime is 11000504227. The reversal of 11000504220 is 2240500011.

11000504220 = 16564² + 16565² + ... + 16603².

It is a super-2 number, since 2×11000504220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11000504220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000504227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939241 + ... + 950880.

It is an arithmetic number, because the mean of its divisors is an integer number (648311846).

Almost surely, 2^11000504220 is an apocalyptic number.

11000504220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000504220 is an abundant number, since it is smaller than the sum of its proper divisors (20118464388).

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

11000504220 is a wasteful number, since it uses less digits than its factorization.

11000504220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890230 (or 1890228 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The spelling of 11000504220 in words is "eleven billion, five hundred four thousand, two hundred twenty".