11225206720 has 112 divisors (see below), whose sum is σ = 32898575808. Its totient is φ = 3552583680.

The previous prime is 11225206711. The next prime is 11225206721. The reversal of 11225206720 is 2760252211.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11225206721) 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, 163621 + ... + 221860.

It is an arithmetic number, because the mean of its divisors is an integer number (293737284).

Almost surely, 2^11225206720 is an apocalyptic number.

11225206720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11225206720 is an abundant number, since it is smaller than the sum of its proper divisors (21673369088).

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

11225206720 is a wasteful number, since it uses less digits than its factorization.

11225206720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385518 (or 385508 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 11225206720 its reverse (2760252211), we get a palindrome (13985458931).

The spelling of 11225206720 in words is "eleven billion, two hundred twenty-five million, two hundred six thousand, seven hundred twenty".