11220232111 has 12 divisors (see below), whose sum is σ = 12340159216. Its totient is φ = 10194275520.

The previous prime is 11220232099. The next prime is 11220232141. The reversal of 11220232111 is 11123202211.

It is not a de Polignac number, because 11220232111 - 2¹⁹ = 11219707823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220232141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188926 + ... + 241108.

Almost surely, 2^11220232111 is an apocalyptic number.

11220232111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11220232111 is a deficient number, since it is larger than the sum of its proper divisors (1119927105).

11220232111 is a wasteful number, since it uses less digits than its factorization.

11220232111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53982 (or 53971 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11220232111 its reverse (11123202211), we get a palindrome (22343434322).

The spelling of 11220232111 in words is "eleven billion, two hundred twenty million, two hundred thirty-two thousand, one hundred eleven".