222120200212 has 6 divisors (see below), whose sum is σ = 388710350378. Its totient is φ = 111060100104.

The previous prime is 222120200209. The next prime is 222120200213. The reversal of 222120200212 is 212002021222.

It can be written as a sum of positive squares in only one way, i.e., 162210784516 + 59909415696 = 402754^2 + 244764^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120200213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27765025023 + ... + 27765025030.

Almost surely, 2^222120200212 is an apocalyptic number.

It is an amenable number.

222120200212 is a deficient number, since it is larger than the sum of its proper divisors (166590150166).

222120200212 is a wasteful number, since it uses less digits than its factorization.

222120200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55530050057 (or 55530050055 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222120200212 its reverse (212002021222), we get a palindrome (434122221434).

The spelling of 222120200212 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred thousand, two hundred twelve".