11212003320 has 64 divisors (see below), whose sum is σ = 38441157120. Its totient is φ = 2562743424.

The previous prime is 11212003261. The next prime is 11212003321. The reversal of 11212003320 is 2330021211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11212003320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212003321) 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, 6672972 + ... + 6674651.

It is an arithmetic number, because the mean of its divisors is an integer number (600643080).

Almost surely, 2^11212003320 is an apocalyptic number.

11212003320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212003320 is an abundant number, since it is smaller than the sum of its proper divisors (27229153800).

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

11212003320 is a wasteful number, since it uses less digits than its factorization.

11212003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347644 (or 13347640 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11212003320 its reverse (2330021211), we get a palindrome (13542024531).

The spelling of 11212003320 in words is "eleven billion, two hundred twelve million, three thousand, three hundred twenty".