212021033021 has 8 divisors (see below), whose sum is σ = 242712934464. Its totient is φ = 181429927200.

The previous prime is 212021032957. The next prime is 212021033033. The reversal of 212021033021 is 120330120212.

212021033021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212021033021 - 2⁶ = 212021032957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021033071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25194395 + ... + 25202808.

It is an arithmetic number, because the mean of its divisors is an integer number (30339116808).

Almost surely, 2^212021033021 is an apocalyptic number.

It is an amenable number.

212021033021 is a deficient number, since it is larger than the sum of its proper divisors (30691901443).

212021033021 is an equidigital number, since it uses as much as digits as its factorization.

212021033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50397811.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021033021 its reverse (120330120212), we get a palindrome (332351153233).

The spelling of 212021033021 in words is "two hundred twelve billion, twenty-one million, thirty-three thousand, twenty-one".