121564531322 has 8 divisors (see below), whose sum is σ = 196373473716. Its totient is φ = 56106706752.

The previous prime is 121564531229. The next prime is 121564531331. The reversal of 121564531322 is 223135465121.

It can be written as a sum of positive squares in 2 ways, for example, as 111276283561 + 10288247761 = 333581^2 + 101431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2337779423 + ... + 2337779474.

Almost surely, 2^121564531322 is an apocalyptic number.

121564531322 is a deficient number, since it is larger than the sum of its proper divisors (74808942394).

121564531322 is a wasteful number, since it uses less digits than its factorization.

121564531322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675558912.

The product of its digits is 43200, while the sum is 35.

Adding to 121564531322 its reverse (223135465121), we get a palindrome (344699996443).

The spelling of 121564531322 in words is "one hundred twenty-one billion, five hundred sixty-four million, five hundred thirty-one thousand, three hundred twenty-two".