10212202211221 has 8 divisors (see below), whose sum is σ = 10217299265280. Its totient is φ = 10207106274288.

The previous prime is 10212202211219. The next prime is 10212202211243. The reversal of 10212202211221 is 12211220221201.

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 10212202211221 - 2¹ = 10212202211219 is a prime.

It is a super-3 number, since 3×10212202211221³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212202211291) 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, 18316000 + ... + 18865318.

It is an arithmetic number, because the mean of its divisors is an integer number (1277162408160).

Almost surely, 2^{10212202211221} is an apocalyptic number.

It is an amenable number.

10212202211221 is a deficient number, since it is larger than the sum of its proper divisors (5097054059).

10212202211221 is an equidigital number, since it uses as much as digits as its factorization.

10212202211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558563.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 10212202211221 its reverse (12211220221201), we get a palindrome (22423422432422).

The spelling of 10212202211221 in words is "ten trillion, two hundred twelve billion, two hundred two million, two hundred eleven thousand, two hundred twenty-one".