11212212320 has 24 divisors (see below), whose sum is σ = 26488851984. Its totient is φ = 4484884864.

The previous prime is 11212212311. The next prime is 11212212331. The reversal of 11212212320 is 2321221211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35038004 + ... + 35038323.

It is an arithmetic number, because the mean of its divisors is an integer number (1103702166).

Almost surely, 2^11212212320 is an apocalyptic number.

11212212320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212212320 is an abundant number, since it is smaller than the sum of its proper divisors (15276639664).

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

11212212320 is an equidigital number, since it uses as much as digits as its factorization.

11212212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70076342 (or 70076334 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11212212320 its reverse (2321221211), we get a palindrome (13533433531).

The spelling of 11212212320 in words is "eleven billion, two hundred twelve million, two hundred twelve thousand, three hundred twenty".