212213040001 has 4 divisors (see below), whose sum is σ = 212253784900. Its totient is φ = 212172295104.

The previous prime is 212213039993. The next prime is 212213040043. The reversal of 212213040001 is 100040312212.

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 168875793025 + 43337246976 = 410945^2 + 208176^2 .

It is a cyclic number.

It is not a de Polignac number, because 212213040001 - 2³ = 212213039993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212213040071) 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, 20364636 + ... + 20375053.

It is an arithmetic number, because the mean of its divisors is an integer number (53063446225).

Almost surely, 2^212213040001 is an apocalyptic number.

It is an amenable number.

212213040001 is a deficient number, since it is larger than the sum of its proper divisors (40744899).

212213040001 is an equidigital number, since it uses as much as digits as its factorization.

212213040001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40744898.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 212213040001 its reverse (100040312212), we get a palindrome (312253352213).

The spelling of 212213040001 in words is "two hundred twelve billion, two hundred thirteen million, forty thousand, one".