10101222212221 has 8 divisors (see below), whose sum is σ = 11673964676160. Its totient is φ = 8560907428128.

The previous prime is 10101222212173. The next prime is 10101222212227. The reversal of 10101222212221 is 12221222210101.

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 10101222212221 - 2⁹ = 10101222211709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101222212227) 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, 8106919291 + ... + 8106920536.

It is an arithmetic number, because the mean of its divisors is an integer number (1459245584520).

Almost surely, 2^{10101222212221} is an apocalyptic number.

It is an amenable number.

10101222212221 is a deficient number, since it is larger than the sum of its proper divisors (1572742463939).

10101222212221 is an equidigital number, since it uses as much as digits as its factorization.

10101222212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16213839923.

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

Adding to 10101222212221 its reverse (12221222210101), we get a palindrome (22322444422322).

The spelling of 10101222212221 in words is "ten trillion, one hundred one billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".