222002222202001 has 4 divisors (see below), whose sum is σ = 222412577511604. Its totient is φ = 221591866892400.

The previous prime is 222002222201987. The next prime is 222002222202053. The reversal of 222002222202001 is 100202222200222.

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 55925494372225 + 166076727829776 = 7478335^2 + 12887076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222002222202001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222002222202001.

It is not an unprimeable number, because it can be changed into a prime (222002222208001) 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, 205177653990 + ... + 205177655071.

It is an arithmetic number, because the mean of its divisors is an integer number (55603144377901).

Almost surely, 2^{222002222202001} is an apocalyptic number.

It is an amenable number.

222002222202001 is a deficient number, since it is larger than the sum of its proper divisors (410355309603).

222002222202001 is an equidigital number, since it uses as much as digits as its factorization.

222002222202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410355309602.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 222002222202001 its reverse (100202222200222), we get a palindrome (322204444402223).

The spelling of 222002222202001 in words is "two hundred twenty-two trillion, two billion, two hundred twenty-two million, two hundred two thousand, one".