212002202012221 has 8 divisors (see below), whose sum is σ = 212714314063200. Its totient is φ = 211291078321680.

The previous prime is 212002202012213. The next prime is 212002202012231. The reversal of 212002202012221 is 122210202200212.

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 212002202012221 - 2³ = 212002202012213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002202012231) 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, 246660391 + ... + 247518388.

It is an arithmetic number, because the mean of its divisors is an integer number (26589289257900).

Almost surely, 2^{212002202012221} is an apocalyptic number.

It is an amenable number.

212002202012221 is a deficient number, since it is larger than the sum of its proper divisors (712112050979).

212002202012221 is a wasteful number, since it uses less digits than its factorization.

212002202012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494180219.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 212002202012221 its reverse (122210202200212), we get a palindrome (334212404212433).

The spelling of 212002202012221 in words is "two hundred twelve trillion, two billion, two hundred two million, twelve thousand, two hundred twenty-one".