222011012 has 6 divisors (see below), whose sum is σ = 388519278. Its totient is φ = 111005504.

The previous prime is 222010961. The next prime is 222011017. The reversal of 222011012 is 210110222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 221831236 + 179776 = 14894^2 + 424^2 .

It is a junction number, because it is equal to n+sod(n) for n = 222010984 and 222011002.

It is not an unprimeable number, because it can be changed into a prime (222011017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27751373 + ... + 27751380.

It is an arithmetic number, because the mean of its divisors is an integer number (64753213).

Almost surely, 2^222011012 is an apocalyptic number.

It is an amenable number.

222011012 is a deficient number, since it is larger than the sum of its proper divisors (166508266).

222011012 is a wasteful number, since it uses less digits than its factorization.

222011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55502757 (or 55502755 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 222011012 is about 14900.0339596928. The cubic root of 222011012 is about 605.5149062272.

Adding to 222011012 its reverse (210110222), we get a palindrome (432121234).

The spelling of 222011012 in words is "two hundred twenty-two million, eleven thousand, twelve".