11220331001 has 16 divisors (see below), whose sum is σ = 12510609408. Its totient is φ = 9977360400.

The previous prime is 11220330997. The next prime is 11220331021. The reversal of 11220331001 is 10013302211.

It is a cyclic number.

It is not a de Polignac number, because 11220331001 - 2² = 11220330997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220331021) 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, 42626 + ... + 155748.

It is an arithmetic number, because the mean of its divisors is an integer number (781913088).

Almost surely, 2^11220331001 is an apocalyptic number.

11220331001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11220331001 is a deficient number, since it is larger than the sum of its proper divisors (1290278407).

11220331001 is a wasteful number, since it uses less digits than its factorization.

11220331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113332.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11220331001 its reverse (10013302211), we get a palindrome (21233633212).

The spelling of 11220331001 in words is "eleven billion, two hundred twenty million, three hundred thirty-one thousand, one".