222222012123 has 8 divisors (see below), whose sum is σ = 296300780608. Its totient is φ = 148145625864.

The previous prime is 222222012097. The next prime is 222222012137. The reversal of 222222012123 is 321210222222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222222012123 - 2⁵ = 222222012091 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 222222012123.

It is not an unprimeable number, because it can be changed into a prime (222222012143) 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, 365161 + ... + 760122.

It is an arithmetic number, because the mean of its divisors is an integer number (37037597576).

Almost surely, 2^222222012123 is an apocalyptic number.

222222012123 is a deficient number, since it is larger than the sum of its proper divisors (74078768485).

222222012123 is a wasteful number, since it uses less digits than its factorization.

222222012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191113.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 222222012123 its reverse (321210222222), we get a palindrome (543432234345).

The spelling of 222222012123 in words is "two hundred twenty-two billion, two hundred twenty-two million, twelve thousand, one hundred twenty-three".