135135231222 has 16 divisors (see below), whose sum is σ = 270384002352. Its totient is φ = 45026153760.

The previous prime is 135135231221. The next prime is 135135231227. The reversal of 135135231222 is 222132531531.

It is a super-2 number, since 2×135135231222² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135135231222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135135231221) 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, 4715353 + ... + 4743924.

It is an arithmetic number, because the mean of its divisors is an integer number (16899000147).

Almost surely, 2^135135231222 is an apocalyptic number.

135135231222 is an abundant number, since it is smaller than the sum of its proper divisors (135248771130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135135231222 is a wasteful number, since it uses less digits than its factorization.

135135231222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9461663.

The product of its digits is 10800, while the sum is 30.

Adding to 135135231222 its reverse (222132531531), we get a palindrome (357267762753).

The spelling of 135135231222 in words is "one hundred thirty-five billion, one hundred thirty-five million, two hundred thirty-one thousand, two hundred twenty-two".