12210221010021 has 8 divisors (see below), whose sum is σ = 16282967548704. Its totient is φ = 8138810905680.

The previous prime is 12210221009993. The next prime is 12210221010067. The reversal of 12210221010021 is 12001012201221.

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

It is not a de Polignac number, because 12210221010021 - 2⁵ = 12210221009989 is a prime.

It is a super-2 number, since 2×12210221010021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210221510021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334087266 + ... + 334123811.

It is an arithmetic number, because the mean of its divisors is an integer number (2035370943588).

Almost surely, 2^{12210221010021} is an apocalyptic number.

It is an amenable number.

12210221010021 is a deficient number, since it is larger than the sum of its proper divisors (4072746538683).

12210221010021 is an equidigital number, since it uses as much as digits as its factorization.

12210221010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668217171.

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

Adding to 12210221010021 its reverse (12001012201221), we get a palindrome (24211233211242).

The spelling of 12210221010021 in words is "twelve trillion, two hundred ten billion, two hundred twenty-one million, ten thousand, twenty-one".