212212011221201 has 8 divisors (see below), whose sum is σ = 219058552203264. Its totient is φ = 205365532253760.

The previous prime is 212212011221143. The next prime is 212212011221209. The reversal of 212212011221201 is 102122110212212.

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 212212011221201 - 2⁶ = 212212011221137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212212011221209) 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 7 ways as a sum of consecutive naturals, for example, 8499080 + ... + 22285833.

It is an arithmetic number, because the mean of its divisors is an integer number (27382319025408).

Almost surely, 2^{212212011221201} is an apocalyptic number.

It is an amenable number.

212212011221201 is a deficient number, since it is larger than the sum of its proper divisors (6846540982063).

212212011221201 is a wasteful number, since it uses less digits than its factorization.

212212011221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31007311.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212212011221201 its reverse (102122110212212), we get a palindrome (314334121433413).

The spelling of 212212011221201 in words is "two hundred twelve trillion, two hundred twelve billion, eleven million, two hundred twenty-one thousand, two hundred one".