220212120021 has 8 divisors (see below), whose sum is σ = 293658380160. Its totient is φ = 146786969952.

The previous prime is 220212120017. The next prime is 220212120043. The reversal of 220212120021 is 120021212022.

220212120021 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 not a de Polignac number, because 220212120021 - 2² = 220212120017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212120071) 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, 5253160 + ... + 5294913.

It is an arithmetic number, because the mean of its divisors is an integer number (36707297520).

Almost surely, 2^220212120021 is an apocalyptic number.

It is an amenable number.

220212120021 is a deficient number, since it is larger than the sum of its proper divisors (73446260139).

220212120021 is a wasteful number, since it uses less digits than its factorization.

220212120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555035.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 220212120021 its reverse (120021212022), we get a palindrome (340233332043).

The spelling of 220212120021 in words is "two hundred twenty billion, two hundred twelve million, one hundred twenty thousand, twenty-one".