2222111001 has 16 divisors (see below), whose sum is σ = 3235864320. Its totient is φ = 1345191120.

The previous prime is 2222110997. The next prime is 2222111011. The reversal of 2222111001 is 1001112222.

It is not a de Polignac number, because 2222111001 - 2² = 2222110997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222111011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8991 + ... + 67268.

It is an arithmetic number, because the mean of its divisors is an integer number (202241520).

Almost surely, 2^2222111001 is an apocalyptic number.

It is an amenable number.

2222111001 is a deficient number, since it is larger than the sum of its proper divisors (1013753319).

2222111001 is a wasteful number, since it uses less digits than its factorization.

2222111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77156.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2222111001 is about 47139.2723851355. The cubic root of 2222111001 is about 1304.9341092082.

Adding to 2222111001 its reverse (1001112222), we get a palindrome (3223223223).

The spelling of 2222111001 in words is "two billion, two hundred twenty-two million, one hundred eleven thousand, one".