212212001102221 has 8 divisors (see below), whose sum is σ = 213500683807200. Its totient is φ = 210924464406480.

The previous prime is 212212001102219. The next prime is 212212001102237. The reversal of 212212001102221 is 122201100212212.

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 212212001102221 - 2¹ = 212212001102219 is a prime.

It is a super-2 number, since 2×212212001102221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212001102821) 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, 286130835 + ... + 286871536.

It is an arithmetic number, because the mean of its divisors is an integer number (26687585475900).

Almost surely, 2^{212212001102221} is an apocalyptic number.

It is an amenable number.

212212001102221 is a deficient number, since it is larger than the sum of its proper divisors (1288682704979).

212212001102221 is a wasteful number, since it uses less digits than its factorization.

212212001102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573004619.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212212001102221 its reverse (122201100212212), we get a palindrome (334413101314433).

The spelling of 212212001102221 in words is "two hundred twelve trillion, two hundred twelve billion, one million, one hundred two thousand, two hundred twenty-one".