212012201000221 has 8 divisors (see below), whose sum is σ = 212071384113120. Its totient is φ = 211953023283408.

The previous prime is 212012201000137. The next prime is 212012201000287. The reversal of 212012201000221 is 122000102210212.

It is a happy number.

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 212012201000221 - 2¹³ = 212012200992029 is a prime.

It is a super-2 number, since 2×212012201000221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212012201000195 and 212012201000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012201003221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77890575 + ... + 80566531.

It is an arithmetic number, because the mean of its divisors is an integer number (26508923014140).

Almost surely, 2^{212012201000221} is an apocalyptic number.

It is an amenable number.

212012201000221 is a deficient number, since it is larger than the sum of its proper divisors (59183112899).

212012201000221 is a wasteful number, since it uses less digits than its factorization.

212012201000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698043.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212012201000221 its reverse (122000102210212), we get a palindrome (334012303210433).

The spelling of 212012201000221 in words is "two hundred twelve trillion, twelve billion, two hundred one million, two hundred twenty-one", and thus it is an aban number.