10101010212221 has 8 divisors (see below), whose sum is σ = 10274177808000. Its totient is φ = 9927908084320.

The previous prime is 10101010212149. The next prime is 10101010212233. The reversal of 10101010212221 is 12221201010101.

10101010212221 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 a de Polignac number, because none of the positive numbers 2^k-10101010212221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101010212196 and 10101010212205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101010212281) 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, 16055696 + ... + 16672953.

It is an arithmetic number, because the mean of its divisors is an integer number (1284272226000).

Almost surely, 2^{10101010212221} is an apocalyptic number.

It is an amenable number.

10101010212221 is a deficient number, since it is larger than the sum of its proper divisors (173167595779).

10101010212221 is an equidigital number, since it uses as much as digits as its factorization.

10101010212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32733939.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10101010212221 its reverse (12221201010101), we get a palindrome (22322211222322).

The spelling of 10101010212221 in words is "ten trillion, one hundred one billion, ten million, two hundred twelve thousand, two hundred twenty-one".