135224220601 has 4 divisors (see below), whose sum is σ = 135287738100. Its totient is φ = 135160703104.

The previous prime is 135224220587. The next prime is 135224220613. The reversal of 135224220601 is 106022422531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 106022422531 = 173149 ⋅612319.

It can be written as a sum of positive squares in 2 ways, for example, as 22492800576 + 112731420025 = 149976^2 + 335755^2 .

It is a cyclic number.

It is not a de Polignac number, because 135224220601 - 2¹¹ = 135224218553 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 135224220601.

It is not an unprimeable number, because it can be changed into a prime (135224226601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31755556 + ... + 31759813.

It is an arithmetic number, because the mean of its divisors is an integer number (33821934525).

Almost surely, 2^135224220601 is an apocalyptic number.

It is an amenable number.

135224220601 is a deficient number, since it is larger than the sum of its proper divisors (63517499).

135224220601 is an equidigital number, since it uses as much as digits as its factorization.

135224220601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63517498.

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 135224220601 in words is "one hundred thirty-five billion, two hundred twenty-four million, two hundred twenty thousand, six hundred one".