222112211012001 has 24 divisors (see below), whose sum is σ = 322209897258600. Its totient is φ = 147437370982656.

The previous prime is 222112211011963. The next prime is 222112211012011. The reversal of 222112211012001 is 100210112211222.

222112211012001 is a `hidden beast` number, since 22 + 211 + 221 + 10 + 1 + 200 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 703167779601 + 221409043232400 = 838551^2 + 14879820^2 .

It is not a de Polignac number, because 222112211012001 - 2⁴² = 217714164500897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222112211012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170291475 + ... + 171590823.

It is an arithmetic number, because the mean of its divisors is an integer number (13425412385775).

Almost surely, 2^{222112211012001} is an apocalyptic number.

It is an amenable number.

222112211012001 is a deficient number, since it is larger than the sum of its proper divisors (100097686246599).

222112211012001 is a wasteful number, since it uses less digits than its factorization.

222112211012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381105 (or 1381102 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222112211012001 its reverse (100210112211222), we get a palindrome (322322323223223).

The spelling of 222112211012001 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred eleven million, twelve thousand, one".