11229615072 has 144 divisors (see below), whose sum is σ = 34603562448. Its totient is φ = 3433881600.

The previous prime is 11229615053. The next prime is 11229615101. The reversal of 11229615072 is 27051692211.

11229615072 is a `hidden beast` number, since 1 + 12 + 29 + 615 + 0 + 7 + 2 = 666.

11229615072 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×11229615072² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601072 + ... + 619472.

It is an arithmetic number, because the mean of its divisors is an integer number (240302517).

Almost surely, 2^11229615072 is an apocalyptic number.

11229615072 is a gapful number since it is divisible by the number (12) 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 11229615072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17301781224).

11229615072 is an abundant number, since it is smaller than the sum of its proper divisors (23373947376).

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

11229615072 is a wasteful number, since it uses less digits than its factorization.

11229615072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593 (or 18582 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 11229615072 in words is "eleven billion, two hundred twenty-nine million, six hundred fifteen thousand, seventy-two".