101221210002221 has 8 divisors (see below), whose sum is σ = 101341632295200. Its totient is φ = 101100793725360.

The previous prime is 101221210002191. The next prime is 101221210002359. The reversal of 101221210002221 is 122200012122101.

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-101221210002221 is a prime.

It is a super-2 number, since 2×101221210002221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101221210002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101221210002421) 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, 32626286 + ... + 35593776.

It is an arithmetic number, because the mean of its divisors is an integer number (12667704036900).

Almost surely, 2^{101221210002221} is an apocalyptic number.

It is an amenable number.

101221210002221 is a deficient number, since it is larger than the sum of its proper divisors (120422292979).

101221210002221 is an equidigital number, since it uses as much as digits as its factorization.

101221210002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008059.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 101221210002221 its reverse (122200012122101), we get a palindrome (223421222124322).

The spelling of 101221210002221 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred ten million, two thousand, two hundred twenty-one".