212001120221 has 8 divisors (see below), whose sum is σ = 231284970624. Its totient is φ = 192719106720.

The previous prime is 212001120151. The next prime is 212001120229. The reversal of 212001120221 is 122021100212.

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 212001120221 - 2¹⁴ = 212001103837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212001120196 and 212001120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001120229) 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, 212120 + ... + 684833.

It is an arithmetic number, because the mean of its divisors is an integer number (28910621328).

Almost surely, 2^212001120221 is an apocalyptic number.

It is an amenable number.

212001120221 is a deficient number, since it is larger than the sum of its proper divisors (19283850403).

212001120221 is a wasteful number, since it uses less digits than its factorization.

212001120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918451.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212001120221 its reverse (122021100212), we get a palindrome (334022220433).

The spelling of 212001120221 in words is "two hundred twelve billion, one million, one hundred twenty thousand, two hundred twenty-one".