101221021105 has 8 divisors (see below), whose sum is σ = 124289998272. Its totient is φ = 79093634928.

The previous prime is 101221021091. The next prime is 101221021129. The reversal of 101221021105 is 501120122101.

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 101221021105 - 2¹¹ = 101221019057 is a prime.

It is a super-2 number, since 2×101221021105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235397509 + ... + 235397938.

It is an arithmetic number, because the mean of its divisors is an integer number (15536249784).

Almost surely, 2^101221021105 is an apocalyptic number.

It is an amenable number.

101221021105 is a deficient number, since it is larger than the sum of its proper divisors (23068977167).

101221021105 is an equidigital number, since it uses as much as digits as its factorization.

101221021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470795495.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 101221021105 its reverse (501120122101), we get a palindrome (602341143206).

The spelling of 101221021105 in words is "one hundred one billion, two hundred twenty-one million, twenty-one thousand, one hundred five".