11220556426530 has 128 divisors (see below), whose sum is σ = 30069348857856. Its totient is φ = 2656107417600.

The previous prime is 11220556426493. The next prime is 11220556426559. The reversal of 11220556426530 is 3562465502211.

11220556426530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49708482 + ... + 49933698.

It is an arithmetic number, because the mean of its divisors is an integer number (234916787952).

Almost surely, 2^{11220556426530} is an apocalyptic number.

11220556426530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11220556426530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15034674428928).

11220556426530 is an abundant number, since it is smaller than the sum of its proper divisors (18848792431326).

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

11220556426530 is a wasteful number, since it uses less digits than its factorization.

11220556426530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228792.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 11220556426530 in words is "eleven trillion, two hundred twenty billion, five hundred fifty-six million, four hundred twenty-six thousand, five hundred thirty".