100220112445 has 4 divisors (see below), whose sum is σ = 120264134940. Its totient is φ = 80176089952.

The previous prime is 100220112437. The next prime is 100220112479. The reversal of 100220112445 is 544211022001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544211022001 = 41 ⋅13273439561.

It can be written as a sum of positive squares in 2 ways, for example, as 48697014276 + 51523098169 = 220674^2 + 226987^2 .

It is a cyclic number.

It is not a de Polignac number, because 100220112445 - 2³ = 100220112437 is a prime.

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, 10022011240 + ... + 10022011249.

It is an arithmetic number, because the mean of its divisors is an integer number (30066033735).

Almost surely, 2^100220112445 is an apocalyptic number.

It is an amenable number.

100220112445 is a deficient number, since it is larger than the sum of its proper divisors (20044022495).

100220112445 is an equidigital number, since it uses as much as digits as its factorization.

100220112445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044022494.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 100220112445 its reverse (544211022001), we get a palindrome (644431134446).

The spelling of 100220112445 in words is "one hundred billion, two hundred twenty million, one hundred twelve thousand, four hundred forty-five".