111220310201 has 48 divisors (see below), whose sum is σ = 152220938688. Its totient is φ = 79880976000.

The previous prime is 111220310197. The next prime is 111220310209. The reversal of 111220310201 is 102013022111.

It is not a de Polignac number, because 111220310201 - 2² = 111220310197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220310209) 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, 4900586 + ... + 4923228.

It is an arithmetic number, because the mean of its divisors is an integer number (3171269556).

Almost surely, 2^111220310201 is an apocalyptic number.

111220310201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111220310201 is a deficient number, since it is larger than the sum of its proper divisors (41000628487).

111220310201 is a wasteful number, since it uses less digits than its factorization.

111220310201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23382 (or 23375 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 111220310201 its reverse (102013022111), we get a palindrome (213233332312).

The spelling of 111220310201 in words is "one hundred eleven billion, two hundred twenty million, three hundred ten thousand, two hundred one".