222331311212 has 12 divisors (see below), whose sum is σ = 389138323056. Its totient is φ = 111148933200.

The previous prime is 222331311197. The next prime is 222331311233. The reversal of 222331311212 is 212113133222.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4150664 + ... + 4203887.

It is an arithmetic number, because the mean of its divisors is an integer number (32428193588).

Almost surely, 2^222331311212 is an apocalyptic number.

It is an amenable number.

222331311212 is a deficient number, since it is larger than the sum of its proper divisors (166807011844).

222331311212 is a wasteful number, since it uses less digits than its factorization.

222331311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8361208 (or 8361206 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 222331311212 its reverse (212113133222), we get a palindrome (434444444434).

The spelling of 222331311212 in words is "two hundred twenty-two billion, three hundred thirty-one million, three hundred eleven thousand, two hundred twelve".