3123220222222 has 16 divisors (see below), whose sum is σ = 4699569672000. Its totient is φ = 1556699505120.

The previous prime is 3123220222201. The next prime is 3123220222223. The reversal of 3123220222222 is 2222220223213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123220222223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1874779 + ... + 3124297.

It is an arithmetic number, because the mean of its divisors is an integer number (293723104500).

Almost surely, 2^{3123220222222} is an apocalyptic number.

3123220222222 is a deficient number, since it is larger than the sum of its proper divisors (1576349449778).

3123220222222 is a wasteful number, since it uses less digits than its factorization.

3123220222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253451.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 3123220222222 its reverse (2222220223213), we get a palindrome (5345440445435).

Subtracting from 3123220222222 its reverse (2222220223213), we obtain a palindrome (900999999009).

The spelling of 3123220222222 in words is "three trillion, one hundred twenty-three billion, two hundred twenty million, two hundred twenty-two thousand, two hundred twenty-two".