3111001122222 has 48 divisors (see below), whose sum is σ = 7988743631232. Its totient is φ = 888857462520.

The previous prime is 3111001122197. The next prime is 3111001122223. The reversal of 3111001122222 is 2222211001113.

3111001122222 is a `hidden beast` number, since 311 + 10 + 0 + 1 + 122 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3111001122195 and 3111001122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111001122223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457227804 + ... + 457234607.

It is an arithmetic number, because the mean of its divisors is an integer number (166432158984).

Almost surely, 2^{3111001122222} is an apocalyptic number.

3111001122222 is an abundant number, since it is smaller than the sum of its proper divisors (4877742509010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111001122222 is an equidigital number, since it uses as much as digits as its factorization.

3111001122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914462435 (or 914462423 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 3111001122222 its reverse (2222211001113), we get a palindrome (5333212123335).

The spelling of 3111001122222 in words is "three trillion, one hundred eleven billion, one million, one hundred twenty-two thousand, two hundred twenty-two".