99885222 has 48 divisors (see below), whose sum is σ = 225342000. Its totient is φ = 31937472.

The previous prime is 99885211. The next prime is 99885239. The reversal of 99885222 is 22258899.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92904 + ... + 93972.

It is an arithmetic number, because the mean of its divisors is an integer number (4694625).

Almost surely, 2^99885222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99885222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112671000).

99885222 is an abundant number, since it is smaller than the sum of its proper divisors (125456778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99885222 is a wasteful number, since it uses less digits than its factorization.

99885222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285 (or 1282 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 99885222 is about 9994.2594523056. The cubic root of 99885222 is about 463.9812312810.

It can be divided in two parts, 99885 and 222, that multiplied together give a triangular number (22174470 = T₆₆₅₉).

The spelling of 99885222 in words is "ninety-nine million, eight hundred eighty-five thousand, two hundred twenty-two".