222001021012 has 12 divisors (see below), whose sum is σ = 388506894580. Its totient is φ = 110999051136.

The previous prime is 222001021003. The next prime is 222001021027. The reversal of 222001021012 is 210120100222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115936164036 + 106064856976 = 340494^2 + 325676^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222001020983 and 222001021001.

It is a congruent number.

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, 23314 + ... + 666742.

Almost surely, 2^222001021012 is an apocalyptic number.

It is an amenable number.

222001021012 is a deficient number, since it is larger than the sum of its proper divisors (166505873568).

222001021012 is a wasteful number, since it uses less digits than its factorization.

222001021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729690 (or 729688 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 222001021012 its reverse (210120100222), we get a palindrome (432121121234).

The spelling of 222001021012 in words is "two hundred twenty-two billion, one million, twenty-one thousand, twelve".