222111102001 has 4 divisors (see below), whose sum is σ = 222936794100. Its totient is φ = 221285409904.

The previous prime is 222111101999. The next prime is 222111102043. The reversal of 222111102001 is 100201111222.

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 10281960000 + 211829142001 = 101400^2 + 460249^2 .

It is a cyclic number.

It is not a de Polignac number, because 222111102001 - 2¹ = 222111101999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222111402001) 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, 412845646 + ... + 412846183.

It is an arithmetic number, because the mean of its divisors is an integer number (55734198525).

Almost surely, 2^222111102001 is an apocalyptic number.

It is an amenable number.

222111102001 is a deficient number, since it is larger than the sum of its proper divisors (825692099).

222111102001 is an equidigital number, since it uses as much as digits as its factorization.

222111102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825692098.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222111102001 its reverse (100201111222), we get a palindrome (322312213223).

The spelling of 222111102001 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred two thousand, one".