101101210121221 has 8 divisors (see below), whose sum is σ = 101124010220544. Its totient is φ = 101078411093040.

The previous prime is 101101210121203. The next prime is 101101210121251. The reversal of 101101210121221 is 122121012101101.

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 101101210121221 - 2⁴⁵ = 65916838032389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101101210121195 and 101101210121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101101210121251) 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, 206334300 + ... + 206823706.

It is an arithmetic number, because the mean of its divisors is an integer number (12640501277568).

Almost surely, 2^{101101210121221} is an apocalyptic number.

It is an amenable number.

101101210121221 is a deficient number, since it is larger than the sum of its proper divisors (22800099323).

101101210121221 is an equidigital number, since it uses as much as digits as its factorization.

101101210121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535571.

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

Adding to 101101210121221 its reverse (122121012101101), we get a palindrome (223222222222322).

The spelling of 101101210121221 in words is "one hundred one trillion, one hundred one billion, two hundred ten million, one hundred twenty-one thousand, two hundred twenty-one".