101211111110221 has 8 divisors (see below), whose sum is σ = 115800837698624. Its totient is φ = 86654133629280.

The previous prime is 101211111110149. The next prime is 101211111110243. The reversal of 101211111110221 is 122011111112101.

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

It is not a de Polignac number, because 101211111110221 - 2⁷ = 101211111110093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101211111110195 and 101211111110204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211111120221) 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, 8187270240 + ... + 8187282601.

It is an arithmetic number, because the mean of its divisors is an integer number (14475104712328).

Almost surely, 2^{101211111110221} is an apocalyptic number.

It is an amenable number.

101211111110221 is a deficient number, since it is larger than the sum of its proper divisors (14589726588403).

101211111110221 is an equidigital number, since it uses as much as digits as its factorization.

101211111110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16374553731.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 101211111110221 its reverse (122011111112101), we get a palindrome (223222222222322).

The spelling of 101211111110221 in words is "one hundred one trillion, two hundred eleven billion, one hundred eleven million, one hundred ten thousand, two hundred twenty-one".