99211255827 has 16 divisors (see below), whose sum is σ = 134326321440. Its totient is φ = 65121656832.

The previous prime is 99211255789. The next prime is 99211255853. The reversal of 99211255827 is 72855211299.

It is not a de Polignac number, because 99211255827 - 2¹⁸ = 99210993683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99211255827.

It is not an unprimeable number, because it can be changed into a prime (99211255427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266202 + ... + 518927.

It is an arithmetic number, because the mean of its divisors is an integer number (8395395090).

Almost surely, 2^99211255827 is an apocalyptic number.

99211255827 is a deficient number, since it is larger than the sum of its proper divisors (35115065613).

99211255827 is a wasteful number, since it uses less digits than its factorization.

99211255827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785782.

The product of its digits is 907200, while the sum is 51.

The spelling of 99211255827 in words is "ninety-nine billion, two hundred eleven million, two hundred fifty-five thousand, eight hundred twenty-seven".