111122232101 has 4 divisors (see below), whose sum is σ = 111194815104. Its totient is φ = 111049649100.

The previous prime is 111122232097. The next prime is 111122232119. The reversal of 111122232101 is 101232221111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111122232101 - 2² = 111122232097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111122232101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122232301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36289205 + ... + 36292266.

It is an arithmetic number, because the mean of its divisors is an integer number (27798703776).

Almost surely, 2^111122232101 is an apocalyptic number.

It is an amenable number.

111122232101 is a deficient number, since it is larger than the sum of its proper divisors (72583003).

111122232101 is an equidigital number, since it uses as much as digits as its factorization.

111122232101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72583002.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111122232101 its reverse (101232221111), we get a palindrome (212354453212).

The spelling of 111122232101 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred thirty-two thousand, one hundred one".