10212212022221 has 16 divisors (see below), whose sum is σ = 11331839736000. Its totient is φ = 9125781024000.

The previous prime is 10212212022217. The next prime is 10212212022223. The reversal of 10212212022221 is 12222021221201.

It is a cyclic number.

It is not a de Polignac number, because 10212212022221 - 2² = 10212212022217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212212022193 and 10212212022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212212022223) 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 15 ways as a sum of consecutive naturals, for example, 32909996 + ... + 33218853.

It is an arithmetic number, because the mean of its divisors is an integer number (708239983500).

Almost surely, 2^{10212212022221} is an apocalyptic number.

10212212022221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10212212022221 is a deficient number, since it is larger than the sum of its proper divisors (1119627713779).

10212212022221 is a wasteful number, since it uses less digits than its factorization.

10212212022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66129100.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10212212022221 its reverse (12222021221201), we get a palindrome (22434233243422).

The spelling of 10212212022221 in words is "ten trillion, two hundred twelve billion, two hundred twelve million, twenty-two thousand, two hundred twenty-one".