11220320151 has 48 divisors (see below), whose sum is σ = 17102991360. Its totient is φ = 7349603040.

The previous prime is 11220320147. The next prime is 11220320171. The reversal of 11220320151 is 15102302211.

It is not a de Polignac number, because 11220320151 - 2² = 11220320147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220320131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4279621 + ... + 4282241.

It is an arithmetic number, because the mean of its divisors is an integer number (356312320).

Almost surely, 2^11220320151 is an apocalyptic number.

11220320151 is a deficient number, since it is larger than the sum of its proper divisors (5882671209).

11220320151 is an equidigital number, since it uses as much as digits as its factorization.

11220320151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 11220320151 its reverse (15102302211), we get a palindrome (26322622362).

The spelling of 11220320151 in words is "eleven billion, two hundred twenty million, three hundred twenty thousand, one hundred fifty-one".