222231212012 has 12 divisors (see below), whose sum is σ = 411781363560. Its totient is φ = 104579393856.

The previous prime is 222231211991. The next prime is 222231212017. The reversal of 222231212012 is 210212132222.

It is not an unprimeable number, because it can be changed into a prime (222231212017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634052962 + ... + 1634053097.

It is an arithmetic number, because the mean of its divisors is an integer number (34315113630).

Almost surely, 2^222231212012 is an apocalyptic number.

It is an amenable number.

222231212012 is a deficient number, since it is larger than the sum of its proper divisors (189550151548).

222231212012 is a wasteful number, since it uses less digits than its factorization.

222231212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268106080 (or 3268106078 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222231212012 its reverse (210212132222), we get a palindrome (432443344234).

The spelling of 222231212012 in words is "two hundred twenty-two billion, two hundred thirty-one million, two hundred twelve thousand, twelve".