100222999 has 2 divisors, whose sum is σ = 100223000. Its totient is φ = 100222998.

The previous prime is 100222987. The next prime is 100223009. The reversal of 100222999 is 999222001.

It is a strong prime.

It is an emirp because it is prime and its reverse (999222001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100222999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100222919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50111499 + 50111500.

It is an arithmetic number, because the mean of its divisors is an integer number (50111500).

Almost surely, 2^100222999 is an apocalyptic number.

100222999 is a deficient number, since it is larger than the sum of its proper divisors (1).

100222999 is an equidigital number, since it uses as much as digits as its factorization.

100222999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 100222999 is about 10011.1437408520. The cubic root of 100222999 is about 464.5036504352.

The spelling of 100222999 in words is "one hundred million, two hundred twenty-two thousand, nine hundred ninety-nine".