501535221106 has 4 divisors (see below), whose sum is σ = 752302831662. Its totient is φ = 250767610552.

The previous prime is 501535221079. The next prime is 501535221119. The reversal of 501535221106 is 601122535105.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 400700394081 + 100834827025 = 633009^2 + 317545^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125383805275 + ... + 125383805278.

Almost surely, 2^501535221106 is an apocalyptic number.

501535221106 is a deficient number, since it is larger than the sum of its proper divisors (250767610556).

501535221106 is a wasteful number, since it uses less digits than its factorization.

501535221106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250767610555.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 501535221106 in words is "five hundred one billion, five hundred thirty-five million, two hundred twenty-one thousand, one hundred six".