101221320000001 has 4 divisors (see below), whose sum is σ = 103374965106432. Its totient is φ = 99067674893572.

The previous prime is 101221319999999. The next prime is 101221320000013. The reversal of 101221320000001 is 100000023122101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101221320000001 - 2¹ = 101221319999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221320000071) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1076822553145 + ... + 1076822553238.

It is an arithmetic number, because the mean of its divisors is an integer number (25843741276608).

Almost surely, 2^{101221320000001} is an apocalyptic number.

It is an amenable number.

101221320000001 is a deficient number, since it is larger than the sum of its proper divisors (2153645106431).

101221320000001 is an equidigital number, since it uses as much as digits as its factorization.

101221320000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2153645106430.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101221320000001 its reverse (100000023122101), we get a palindrome (201221343122102).

The spelling of 101221320000001 in words is "one hundred one trillion, two hundred twenty-one billion, three hundred twenty million, one", and thus it is an aban number.