99955222 has 8 divisors (see below), whose sum is σ = 154769472. Its totient is φ = 48365400.

The previous prime is 99955213. The next prime is 99955231. The reversal of 99955222 is 22255999.

It is an interprime number because it is at equal distance from previous prime (99955213) and next prime (99955231).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806029 + ... + 806152.

It is an arithmetic number, because the mean of its divisors is an integer number (19346184).

Almost surely, 2^99955222 is an apocalyptic number.

99955222 is a deficient number, since it is larger than the sum of its proper divisors (54814250).

99955222 is a wasteful number, since it uses less digits than its factorization.

99955222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612214.

The product of its digits is 145800, while the sum is 43.

The square root of 99955222 is about 9997.7608493102. The cubic root of 99955222 is about 464.0895926630.

The spelling of 99955222 in words is "ninety-nine million, nine hundred fifty-five thousand, two hundred twenty-two".