222210212120201 has 4 divisors (see below), whose sum is σ = 224410313230404. Its totient is φ = 220010111010000.

The previous prime is 222210212120179. The next prime is 222210212120297. The reversal of 222210212120201 is 102021212012222.

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 115042270802176 + 107167941318025 = 10725776^2 + 10352195^2 .

It is a cyclic number.

It is not a de Polignac number, because 222210212120201 - 2³⁴ = 222193032251017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222210212120801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100050554950 + ... + 1100050555151.

It is an arithmetic number, because the mean of its divisors is an integer number (56102578307601).

Almost surely, 2^{222210212120201} is an apocalyptic number.

It is an amenable number.

222210212120201 is a deficient number, since it is larger than the sum of its proper divisors (2200101110203).

222210212120201 is a wasteful number, since it uses less digits than its factorization.

222210212120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200101110202.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 222210212120201 its reverse (102021212012222), we get a palindrome (324231424132423).

The spelling of 222210212120201 in words is "two hundred twenty-two trillion, two hundred ten billion, two hundred twelve million, one hundred twenty thousand, two hundred one".