222012012123 has 12 divisors (see below), whose sum is σ = 349837110168. Its totient is φ = 134552734560.

The previous prime is 222012012109. The next prime is 222012012133. The reversal of 222012012123 is 321210210222.

It is not a de Polignac number, because 222012012123 - 2¹⁰ = 222012011099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222012012096 and 222012012105.

It is not an unprimeable number, because it can be changed into a prime (222012012133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1121272690 + ... + 1121272887.

It is an arithmetic number, because the mean of its divisors is an integer number (29153092514).

Almost surely, 2^222012012123 is an apocalyptic number.

222012012123 is a deficient number, since it is larger than the sum of its proper divisors (127825098045).

222012012123 is a wasteful number, since it uses less digits than its factorization.

222012012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242545594 (or 2242545591 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 222012012123 its reverse (321210210222), we get a palindrome (543222222345).

The spelling of 222012012123 in words is "two hundred twenty-two billion, twelve million, twelve thousand, one hundred twenty-three".