521141226202 has 4 divisors (see below), whose sum is σ = 781711839306. Its totient is φ = 260570613100.

The previous prime is 521141226197. The next prime is 521141226223. The reversal of 521141226202 is 202622141125.

It is a happy number.

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., 438920825121 + 82220401081 = 662511^2 + 286741^2 .

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, 130285306549 + ... + 130285306552.

Almost surely, 2^521141226202 is an apocalyptic number.

521141226202 is a deficient number, since it is larger than the sum of its proper divisors (260570613104).

521141226202 is a wasteful number, since it uses less digits than its factorization.

521141226202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260570613103.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 521141226202 its reverse (202622141125), we get a palindrome (723763367327).

The spelling of 521141226202 in words is "five hundred twenty-one billion, one hundred forty-one million, two hundred twenty-six thousand, two hundred two".