222222310211212 has 48 divisors (see below), whose sum is σ = 414193978275840. Its totient is φ = 104026267170432.

The previous prime is 222222310211173. The next prime is 222222310211353. The reversal of 222222310211212 is 212112013222222.

It is a happy number.

222222310211212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45532168 + ... + 50175919.

It is an arithmetic number, because the mean of its divisors is an integer number (8629041214080).

Almost surely, 2^{222222310211212} is an apocalyptic number.

It is an amenable number.

222222310211212 is a deficient number, since it is larger than the sum of its proper divisors (191971668064628).

222222310211212 is a wasteful number, since it uses less digits than its factorization.

222222310211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95708470 (or 95708468 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 222222310211212 its reverse (212112013222222), we get a palindrome (434334323433434).

The spelling of 222222310211212 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, three hundred ten million, two hundred eleven thousand, two hundred twelve".