212122221012201 has 8 divisors (see below), whose sum is σ = 282829712143680. Its totient is φ = 141414771944432.

The previous prime is 212122221012179. The next prime is 212122221012239. The reversal of 212122221012201 is 102210122221212.

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 212122221012201 - 2⁹ = 212122221011689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212122221012001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4187851 + ... + 21018623.

It is an arithmetic number, because the mean of its divisors is an integer number (35353714017960).

Almost surely, 2^{212122221012201} is an apocalyptic number.

It is an amenable number.

212122221012201 is a deficient number, since it is larger than the sum of its proper divisors (70707491131479).

212122221012201 is a wasteful number, since it uses less digits than its factorization.

212122221012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21031855.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212122221012201 its reverse (102210122221212), we get a palindrome (314332343233413).

The spelling of 212122221012201 in words is "two hundred twelve trillion, one hundred twenty-two billion, two hundred twenty-one million, twelve thousand, two hundred one".