100223300021 has 4 divisors (see below), whose sum is σ = 107932784652. Its totient is φ = 92513815392.

The previous prime is 100223300003. The next prime is 100223300057. The reversal of 100223300021 is 120003322001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32564007025 + 67659292996 = 180455^2 + 260114^2 .

It is a cyclic number.

It is not a de Polignac number, because 100223300021 - 2³⁴ = 83043430837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100223299969 and 100223300005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100223308021) 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, 3854742296 + ... + 3854742321.

It is an arithmetic number, because the mean of its divisors is an integer number (26983196163).

Almost surely, 2^100223300021 is an apocalyptic number.

It is an amenable number.

100223300021 is a deficient number, since it is larger than the sum of its proper divisors (7709484631).

100223300021 is an equidigital number, since it uses as much as digits as its factorization.

100223300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7709484630.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 100223300021 its reverse (120003322001), we get a palindrome (220226622022).

The spelling of 100223300021 in words is "one hundred billion, two hundred twenty-three million, three hundred thousand, twenty-one".