11212450155530 has 256 divisors, whose sum is σ = 22666020410880. Its totient is φ = 3968104660992.

The previous prime is 11212450155479. The next prime is 11212450155553. The reversal of 11212450155530 is 3555105421211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14580558986 + ... + 14580559754.

It is an arithmetic number, because the mean of its divisors is an integer number (88539142230).

Almost surely, 2^{11212450155530} is an apocalyptic number.

11212450155530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212450155530 is an abundant number, since it is smaller than the sum of its proper divisors (11453570255350).

11212450155530 is a wasteful number, since it uses less digits than its factorization.

11212450155530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its (nonzero) digits is 30000, while the sum is 35.

Adding to 11212450155530 its reverse (3555105421211), we get a palindrome (14767555576741).

The spelling of 11212450155530 in words is "eleven trillion, two hundred twelve billion, four hundred fifty million, one hundred fifty-five thousand, five hundred thirty".