135226221311 has 8 divisors (see below), whose sum is σ = 135782185344. Its totient is φ = 134671034520.

The previous prime is 135226221293. The next prime is 135226221331. The reversal of 135226221311 is 113122622531.

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-135226221311 is a prime.

It is a super-2 number, since 2×135226221311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135226221331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155660 + ... + 542846.

It is an arithmetic number, because the mean of its divisors is an integer number (16972773168).

Almost surely, 2^135226221311 is an apocalyptic number.

135226221311 is a deficient number, since it is larger than the sum of its proper divisors (555964033).

135226221311 is a wasteful number, since it uses less digits than its factorization.

135226221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388621.

The product of its digits is 4320, while the sum is 29.

Adding to 135226221311 its reverse (113122622531), we get a palindrome (248348843842).

The spelling of 135226221311 in words is "one hundred thirty-five billion, two hundred twenty-six million, two hundred twenty-one thousand, three hundred eleven".