101522424544421 has 4 divisors (see below), whose sum is σ = 101522453206092. Its totient is φ = 101522395882752.

The previous prime is 101522424544393. The next prime is 101522424544423. The reversal of 101522424544421 is 124445424225101.

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 36084517547521 + 65437906996900 = 6007039^2 + 8089370^2 .

It is a cyclic number.

It is not a de Polignac number, because 101522424544421 - 2³⁸ = 101247546637477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101522424544423) 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, 8120636 + ... + 16400901.

It is an arithmetic number, because the mean of its divisors is an integer number (25380613301523).

Almost surely, 2^{101522424544421} is an apocalyptic number.

It is an amenable number.

101522424544421 is a deficient number, since it is larger than the sum of its proper divisors (28661671).

101522424544421 is an equidigital number, since it uses as much as digits as its factorization.

101522424544421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28661670.

The product of its (nonzero) digits is 409600, while the sum is 41.

Adding to 101522424544421 its reverse (124445424225101), we get a palindrome (225967848769522).

The spelling of 101522424544421 in words is "one hundred one trillion, five hundred twenty-two billion, four hundred twenty-four million, five hundred forty-four thousand, four hundred twenty-one".