212222442001 has 8 divisors (see below), whose sum is σ = 212569151400. Its totient is φ = 211876014720.

The previous prime is 212222441999. The next prime is 212222442013. The reversal of 212222442001 is 100244222212.

It can be written as a sum of positive squares in 4 ways, for example, as 3460262976 + 208762179025 = 58824^2 + 456905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212222442001 - 2¹ = 212222441999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222442041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462245 + ... + 1600813.

It is an arithmetic number, because the mean of its divisors is an integer number (26571143925).

Almost surely, 2^212222442001 is an apocalyptic number.

It is an amenable number.

212222442001 is a deficient number, since it is larger than the sum of its proper divisors (346709399).

212222442001 is a wasteful number, since it uses less digits than its factorization.

212222442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141059.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 212222442001 its reverse (100244222212), we get a palindrome (312466664213).

The spelling of 212222442001 in words is "two hundred twelve billion, two hundred twenty-two million, four hundred forty-two thousand, one".