222211211100101 has 4 divisors (see below), whose sum is σ = 222214176640332. Its totient is φ = 222208245559872.

The previous prime is 222211211100037. The next prime is 222211211100103. The reversal of 222211211100101 is 101001112112222.

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 157509377475076 + 64701833625025 = 12550274^2 + 8043745^2 .

It is a cyclic number.

It is not a de Polignac number, because 222211211100101 - 2⁶ = 222211211100037 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 222211211100101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211211100103) 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, 1482657716 + ... + 1482807581.

It is an arithmetic number, because the mean of its divisors is an integer number (55553544160083).

Almost surely, 2^{222211211100101} is an apocalyptic number.

It is an amenable number.

222211211100101 is a deficient number, since it is larger than the sum of its proper divisors (2965540231).

222211211100101 is an equidigital number, since it uses as much as digits as its factorization.

222211211100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965540230.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 222211211100101 its reverse (101001112112222), we get a palindrome (323212323212323).

The spelling of 222211211100101 in words is "two hundred twenty-two trillion, two hundred eleven billion, two hundred eleven million, one hundred thousand, one hundred one".