100222387 has 4 divisors (see below), whose sum is σ = 100652760. Its totient is φ = 99792016.

The previous prime is 100222373. The next prime is 100222433. The reversal of 100222387 is 783222001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783222001 = 479 ⋅1635119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100222387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100222987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214837 + ... + 215302.

It is an arithmetic number, because the mean of its divisors is an integer number (25163190).

Almost surely, 2^100222387 is an apocalyptic number.

100222387 is a deficient number, since it is larger than the sum of its proper divisors (430373).

100222387 is an equidigital number, since it uses as much as digits as its factorization.

100222387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430372.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 100222387 is about 10011.1131748672. The cubic root of 100222387 is about 464.5027049542.

Adding to 100222387 its reverse (783222001), we get a palindrome (883444388).

The spelling of 100222387 in words is "one hundred million, two hundred twenty-two thousand, three hundred eighty-seven".