222202200220001 has 4 divisors (see below), whose sum is σ = 222206951324100. Its totient is φ = 222197449115904.

The previous prime is 222202200219997. The next prime is 222202200220009. The reversal of 222202200220001 is 100022002202222.

222202200220001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 48720400000000 + 173481800220001 = 6980000^2 + 13171249^2 .

It is a cyclic number.

It is not a de Polignac number, because 222202200220001 - 2² = 222202200219997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222202200220009) 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, 2375481896 + ... + 2375575433.

It is an arithmetic number, because the mean of its divisors is an integer number (55551737831025).

Almost surely, 2^{222202200220001} is an apocalyptic number.

It is an amenable number.

222202200220001 is a deficient number, since it is larger than the sum of its proper divisors (4751104099).

222202200220001 is an equidigital number, since it uses as much as digits as its factorization.

222202200220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751104098.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 222202200220001 its reverse (100022002202222), we get a palindrome (322224202422223).

The spelling of 222202200220001 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred million, two hundred twenty thousand, one".