243112401222 has 16 divisors (see below), whose sum is σ = 511815581760. Its totient is φ = 76772337192.

The previous prime is 243112401209. The next prime is 243112401247. The reversal of 243112401222 is 222104211342.

It is a junction number, because it is equal to n+sod(n) for n = 243112401192 and 243112401201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066282348 + ... + 1066282575.

It is an arithmetic number, because the mean of its divisors is an integer number (31988473860).

Almost surely, 2^243112401222 is an apocalyptic number.

243112401222 is an abundant number, since it is smaller than the sum of its proper divisors (268703180538).

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

243112401222 is a wasteful number, since it uses less digits than its factorization.

243112401222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132564947.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 243112401222 its reverse (222104211342), we get a palindrome (465216612564).

The spelling of 243112401222 in words is "two hundred forty-three billion, one hundred twelve million, four hundred one thousand, two hundred twenty-two".