222312203212 has 12 divisors (see below), whose sum is σ = 424414206216. Its totient is φ = 101051001440.

The previous prime is 222312203209. The next prime is 222312203221. The reversal of 222312203212 is 212302213222.

222312203212 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526274993 + ... + 2526275080.

It is an arithmetic number, because the mean of its divisors is an integer number (35367850518).

Almost surely, 2^222312203212 is an apocalyptic number.

222312203212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

222312203212 is a deficient number, since it is larger than the sum of its proper divisors (202102003004).

222312203212 is a wasteful number, since it uses less digits than its factorization.

222312203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052550088 (or 5052550086 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 222312203212 its reverse (212302213222), we get a palindrome (434614416434).

It can be divided in two parts, 222312 and 203212, that added together give a palindrome (425524).

The spelling of 222312203212 in words is "two hundred twenty-two billion, three hundred twelve million, two hundred three thousand, two hundred twelve".