99229210538 has 4 divisors (see below), whose sum is σ = 148843815810. Its totient is φ = 49614605268.

The previous prime is 99229210517. The next prime is 99229210573. The reversal of 99229210538 is 83501292299.

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., 75066684289 + 24162526249 = 273983^2 + 155443^2 .

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, 24807302633 + ... + 24807302636.

Almost surely, 2^99229210538 is an apocalyptic number.

99229210538 is a deficient number, since it is larger than the sum of its proper divisors (49614605272).

99229210538 is a wasteful number, since it uses less digits than its factorization.

99229210538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49614605271.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 99229210538 in words is "ninety-nine billion, two hundred twenty-nine million, two hundred ten thousand, five hundred thirty-eight".