222021001101212 has 12 divisors (see below), whose sum is σ = 389110661462040. Its totient is φ = 110846526397776.

The previous prime is 222021001101203. The next prime is 222021001101239. The reversal of 222021001101212 is 212101100120222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40993535162 + ... + 40993540577.

It is an arithmetic number, because the mean of its divisors is an integer number (32425888455170).

Almost surely, 2^{222021001101212} is an apocalyptic number.

It is an amenable number.

222021001101212 is a deficient number, since it is larger than the sum of its proper divisors (167089660360828).

222021001101212 is a wasteful number, since it uses less digits than its factorization.

222021001101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81987076420 (or 81987076418 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222021001101212 its reverse (212101100120222), we get a palindrome (434122101221434).

The spelling of 222021001101212 in words is "two hundred twenty-two trillion, twenty-one billion, one million, one hundred one thousand, two hundred twelve".