135222170402 has 32 divisors (see below), whose sum is σ = 222197955840. Its totient is φ = 61207918720.

The previous prime is 135222170401. The next prime is 135222170449. The reversal of 135222170402 is 204071222531.

It is not an unprimeable number, because it can be changed into a prime (135222170401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9229799 + ... + 9244437.

It is an arithmetic number, because the mean of its divisors is an integer number (6943686120).

Almost surely, 2^135222170402 is an apocalyptic number.

135222170402 is a deficient number, since it is larger than the sum of its proper divisors (86975785438).

135222170402 is a wasteful number, since it uses less digits than its factorization.

135222170402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16378.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 135222170402 its reverse (204071222531), we get a palindrome (339293392933).

The spelling of 135222170402 in words is "one hundred thirty-five billion, two hundred twenty-two million, one hundred seventy thousand, four hundred two".