11202420440 has 128 divisors (see below), whose sum is σ = 26927985600. Its totient is φ = 4186183680.

The previous prime is 11202420401. The next prime is 11202420451. The reversal of 11202420440 is 4402420211.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9055502 + ... + 9056738.

Almost surely, 2^11202420440 is an apocalyptic number.

11202420440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11202420440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13463992800).

11202420440 is an abundant number, since it is smaller than the sum of its proper divisors (15725565160).

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

11202420440 is a wasteful number, since it uses less digits than its factorization.

11202420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1525 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 11202420440 its reverse (4402420211), we get a palindrome (15604840651).

The spelling of 11202420440 in words is "eleven billion, two hundred two million, four hundred twenty thousand, four hundred forty".