100220012455 has 4 divisors (see below), whose sum is σ = 120264014952. Its totient is φ = 80176009960.

The previous prime is 100220012449. The next prime is 100220012507. The reversal of 100220012455 is 554210022001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554210022001 = 149 ⋅3719530349.

It is not a de Polignac number, because 100220012455 - 2⁷ = 100220012327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10022001241 + ... + 10022001250.

It is an arithmetic number, because the mean of its divisors is an integer number (30066003738).

Almost surely, 2^100220012455 is an apocalyptic number.

100220012455 is a deficient number, since it is larger than the sum of its proper divisors (20044002497).

100220012455 is an equidigital number, since it uses as much as digits as its factorization.

100220012455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044002496.

The product of its (nonzero) digits is 800, while the sum is 22.

Adding to 100220012455 its reverse (554210022001), we get a palindrome (654430034456).

The spelling of 100220012455 in words is "one hundred billion, two hundred twenty million, twelve thousand, four hundred fifty-five".