99000222 has 16 divisors (see below), whose sum is σ = 208421760. Its totient is φ = 31263192.

The previous prime is 99000221. The next prime is 99000259. The reversal of 99000222 is 22200099.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99000192 and 99000201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99000221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434098 + ... + 434325.

It is an arithmetic number, because the mean of its divisors is an integer number (13026360).

Almost surely, 2^99000222 is an apocalyptic number.

99000222 is an abundant number, since it is smaller than the sum of its proper divisors (109421538).

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

99000222 is a wasteful number, since it uses less digits than its factorization.

99000222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868447.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 99000222 is about 9949.8855269797. The cubic root of 99000222 is about 462.6068467047.

The spelling of 99000222 in words is "ninety-nine million, two hundred twenty-two", and thus it is an aban number.