212024201221 has 8 divisors (see below), whose sum is σ = 248223455424. Its totient is φ = 177302467680.

The previous prime is 212024201203. The next prime is 212024201227. The reversal of 212024201221 is 122102420212.

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 212024201221 - 2¹¹ = 212024199173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212024201227) 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, 369379855 + ... + 369380428.

It is an arithmetic number, because the mean of its divisors is an integer number (31027931928).

Almost surely, 2^212024201221 is an apocalyptic number.

It is an amenable number.

212024201221 is a deficient number, since it is larger than the sum of its proper divisors (36199254203).

212024201221 is an equidigital number, since it uses as much as digits as its factorization.

212024201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738760331.

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

Adding to 212024201221 its reverse (122102420212), we get a palindrome (334126621433).

The spelling of 212024201221 in words is "two hundred twelve billion, twenty-four million, two hundred one thousand, two hundred twenty-one".