101001222144505 has 4 divisors (see below), whose sum is σ = 121201466573412. Its totient is φ = 80800977715600.

The previous prime is 101001222144503. The next prime is 101001222144521. The reversal of 101001222144505 is 505441222100101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20197231421689 + 80803990722816 = 4494133^2 + 8989104^2 .

It is not a de Polignac number, because 101001222144505 - 2¹ = 101001222144503 is a prime.

It is a super-2 number, since 2×101001222144505² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101001222144503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10100122214446 + ... + 10100122214455.

It is an arithmetic number, because the mean of its divisors is an integer number (30300366643353).

Almost surely, 2^{101001222144505} is an apocalyptic number.

It is an amenable number.

101001222144505 is a deficient number, since it is larger than the sum of its proper divisors (20200244428907).

101001222144505 is an equidigital number, since it uses as much as digits as its factorization.

101001222144505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20200244428906.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 101001222144505 its reverse (505441222100101), we get a palindrome (606442444244606).

The spelling of 101001222144505 in words is "one hundred one trillion, one billion, two hundred twenty-two million, one hundred forty-four thousand, five hundred five".