222120222222212 has 24 divisors (see below), whose sum is σ = 415650712884120. Its totient is φ = 103492240985600.

The previous prime is 222120222222097. The next prime is 222120222222271. The reversal of 222120222222212 is 212222222021222.

It can be written as a sum of positive squares in 4 ways, for example, as 193712004458116 + 28408217764096 = 13918046^2 + 5329936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16170655787 + ... + 16170669522.

It is an arithmetic number, because the mean of its divisors is an integer number (17318779703505).

Almost surely, 2^{222120222222212} is an apocalyptic number.

It is an amenable number.

222120222222212 is a deficient number, since it is larger than the sum of its proper divisors (193530490661908).

222120222222212 is a wasteful number, since it uses less digits than its factorization.

222120222222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32341325431 (or 32341325429 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 222120222222212 its reverse (212222222021222), we get a palindrome (434342444243434).

The spelling of 222120222222212 in words is "two hundred twenty-two trillion, one hundred twenty billion, two hundred twenty-two million, two hundred twenty-two thousand, two hundred twelve".