222426121222123 has 16 divisors (see below), whose sum is σ = 285657627257856. Its totient is φ = 168333958916640.

The previous prime is 222426121222117. The next prime is 222426121222127. The reversal of 222426121222123 is 321222121624222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 222426121222123 - 2²⁵ = 222426087667691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222426121222127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53135717263 + ... + 53135721448.

It is an arithmetic number, because the mean of its divisors is an integer number (17853601703616).

Almost surely, 2^{222426121222123} is an apocalyptic number.

222426121222123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

222426121222123 is a deficient number, since it is larger than the sum of its proper divisors (63231506035733).

222426121222123 is a wasteful number, since it uses less digits than its factorization.

222426121222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106271438754.

The product of its digits is 36864, while the sum is 34.

Adding to 222426121222123 its reverse (321222121624222), we get a palindrome (543648242846345).

The spelling of 222426121222123 in words is "two hundred twenty-two trillion, four hundred twenty-six billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-three".