222112001011001 has 4 divisors (see below), whose sum is σ = 222112201072500. Its totient is φ = 222111800949504.

The previous prime is 222112001010917. The next prime is 222112001011091. The reversal of 222112001011001 is 100110100211222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109095434655376 + 113016566355625 = 10444876^2 + 10630925^2 .

It is a cyclic number.

It is not a de Polignac number, because 222112001011001 - 2¹⁴ = 222112000994617 is a prime.

It is a super-2 number, since 2×222112001011001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222112001011091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98356076 + ... + 100588973.

It is an arithmetic number, because the mean of its divisors is an integer number (55528050268125).

Almost surely, 2^{222112001011001} is an apocalyptic number.

It is an amenable number.

222112001011001 is a deficient number, since it is larger than the sum of its proper divisors (200061499).

222112001011001 is a wasteful number, since it uses less digits than its factorization.

222112001011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200061498.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 222112001011001 its reverse (100110100211222), we get a palindrome (322222101222223).

The spelling of 222112001011001 in words is "two hundred twenty-two trillion, one hundred twelve billion, one million, eleven thousand, one".