212110120221 has 8 divisors (see below), whose sum is σ = 282819521280. Its totient is φ = 141403732992.

The previous prime is 212110120141. The next prime is 212110120303. The reversal of 212110120221 is 122021011212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212110120221 - 2²⁶ = 212043011357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212110120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110120021) 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, 583780 + ... + 874653.

It is an arithmetic number, because the mean of its divisors is an integer number (35352440160).

Almost surely, 2^212110120221 is an apocalyptic number.

It is an amenable number.

212110120221 is a deficient number, since it is larger than the sum of its proper divisors (70709401059).

212110120221 is a wasteful number, since it uses less digits than its factorization.

212110120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506915.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212110120221 its reverse (122021011212), we get a palindrome (334131131433).

The spelling of 212110120221 in words is "two hundred twelve billion, one hundred ten million, one hundred twenty thousand, two hundred twenty-one".