101121221005 has 8 divisors (see below), whose sum is σ = 138680531712. Its totient is φ = 69340265808.

The previous prime is 101121220969. The next prime is 101121221011. The reversal of 101121221005 is 500122121101.

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-101121221005 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101121221005.

It is a congruent number.

It is an unprimeable number.

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, 1444588837 + ... + 1444588906.

It is an arithmetic number, because the mean of its divisors is an integer number (17335066464).

Almost surely, 2^101121221005 is an apocalyptic number.

It is an amenable number.

101121221005 is a deficient number, since it is larger than the sum of its proper divisors (37559310707).

101121221005 is an equidigital number, since it uses as much as digits as its factorization.

101121221005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889177755.

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

Adding to 101121221005 its reverse (500122121101), we get a palindrome (601243342106).

The spelling of 101121221005 in words is "one hundred one billion, one hundred twenty-one million, two hundred twenty-one thousand, five".