11000219940 has 36 divisors (see below), whose sum is σ = 33367334364. Its totient is φ = 2933391936.

The previous prime is 11000219939. The next prime is 11000219981. The reversal of 11000219940 is 4991200011.

It can be written as a sum of positive squares in 2 ways, for example, as 1637335296 + 9362884644 = 40464^2 + 96762^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30555987 + ... + 30556346.

It is an arithmetic number, because the mean of its divisors is an integer number (926870399).

Almost surely, 2^11000219940 is an apocalyptic number.

11000219940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11000219940 is an abundant number, since it is smaller than the sum of its proper divisors (22367114424).

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

11000219940 is a wasteful number, since it uses less digits than its factorization.

11000219940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61112348 (or 61112343 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

Adding to 11000219940 its reverse (4991200011), we get a palindrome (15991419951).

The spelling of 11000219940 in words is "eleven billion, two hundred nineteen thousand, nine hundred forty".