222154112346 has 16 divisors (see below), whose sum is σ = 445320321600. Its totient is φ = 73882687968.

The previous prime is 222154112321. The next prime is 222154112347. The reversal of 222154112346 is 643211451222.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222154112347) 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 7 ways as a sum of consecutive naturals, for example, 42167851 + ... + 42173118.

It is an arithmetic number, because the mean of its divisors is an integer number (27832520100).

Almost surely, 2^222154112346 is an apocalyptic number.

222154112346 is an abundant number, since it is smaller than the sum of its proper divisors (223166209254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222154112346 is a wasteful number, since it uses less digits than its factorization.

222154112346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84341413.

The product of its digits is 23040, while the sum is 33.

Adding to 222154112346 its reverse (643211451222), we get a palindrome (865365563568).

The spelling of 222154112346 in words is "two hundred twenty-two billion, one hundred fifty-four million, one hundred twelve thousand, three hundred forty-six".