3112223021111 has 4 divisors (see below), whose sum is σ = 3139764817872. Its totient is φ = 3084681224352.

The previous prime is 3112223021107. The next prime is 3112223021143. The reversal of 3112223021111 is 1111203222113.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3112223021111 - 2² = 3112223021107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112223021311) 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 3 ways as a sum of consecutive naturals, for example, 13770898211 + ... + 13770898436.

It is an arithmetic number, because the mean of its divisors is an integer number (784941204468).

Almost surely, 2^{3112223021111} is an apocalyptic number.

3112223021111 is a deficient number, since it is larger than the sum of its proper divisors (27541796761).

3112223021111 is a wasteful number, since it uses less digits than its factorization.

3112223021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27541796760.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 3112223021111 its reverse (1111203222113), we get a palindrome (4223426243224).

It can be divided in two parts, 311222 and 3021111, that added together give a palindrome (3332333).

The spelling of 3112223021111 in words is "three trillion, one hundred twelve billion, two hundred twenty-three million, twenty-one thousand, one hundred eleven".