101212102221 has 8 divisors (see below), whose sum is σ = 135004854624. Its totient is φ = 67447042320.

The previous prime is 101212102183. The next prime is 101212102247. The reversal of 101212102221 is 122201212101.

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

It is not a de Polignac number, because 101212102221 - 2⁶ = 101212102157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101212102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212102291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6914595 + ... + 6929216.

It is an arithmetic number, because the mean of its divisors is an integer number (16875606828).

Almost surely, 2^101212102221 is an apocalyptic number.

It is an amenable number.

101212102221 is a deficient number, since it is larger than the sum of its proper divisors (33792752403).

101212102221 is a wasteful number, since it uses less digits than its factorization.

101212102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846251.

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

Adding to 101212102221 its reverse (122201212101), we get a palindrome (223413314322).

The spelling of 101212102221 in words is "one hundred one billion, two hundred twelve million, one hundred two thousand, two hundred twenty-one".