1012100223 has 4 divisors (see below), whose sum is σ = 1349466968. Its totient is φ = 674733480.

The previous prime is 1012100213. The next prime is 1012100249. The reversal of 1012100223 is 3220012101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220012101 = 3 ⋅1073337367.

It is not a de Polignac number, because 1012100223 - 2¹⁷ = 1011969151 is a prime.

It is a super-2 number, since 2×1012100223² = 2048693722793299458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012100199 and 1012100208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012100213) by changing a digit.

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, 168683368 + ... + 168683373.

It is an arithmetic number, because the mean of its divisors is an integer number (337366742).

Almost surely, 2^1012100223 is an apocalyptic number.

1012100223 is a deficient number, since it is larger than the sum of its proper divisors (337366745).

1012100223 is an equidigital number, since it uses as much as digits as its factorization.

1012100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337366744.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1012100223 is about 31813.5226436809. The cubic root of 1012100223 is about 1004.0172477765.

Adding to 1012100223 its reverse (3220012101), we get a palindrome (4232112324).

The spelling of 1012100223 in words is "one billion, twelve million, one hundred thousand, two hundred twenty-three".