133513221522 has 32 divisors (see below), whose sum is σ = 271592352000. Its totient is φ = 43743645008.

The previous prime is 133513221497. The next prime is 133513221529. The reversal of 133513221522 is 225122315331.

It is a self number, because there is not a number n which added to its sum of digits gives 133513221522.

It is not an unprimeable number, because it can be changed into a prime (133513221529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775229 + ... + 2822927.

It is an arithmetic number, because the mean of its divisors is an integer number (8487261000).

Almost surely, 2^133513221522 is an apocalyptic number.

133513221522 is an abundant number, since it is smaller than the sum of its proper divisors (138079130478).

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

133513221522 is a wasteful number, since it uses less digits than its factorization.

133513221522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55670.

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

Adding to 133513221522 its reverse (225122315331), we get a palindrome (358635536853).

The spelling of 133513221522 in words is "one hundred thirty-three billion, five hundred thirteen million, two hundred twenty-one thousand, five hundred twenty-two".