100223121001 has 4 divisors (see below), whose sum is σ = 100502294400. Its totient is φ = 99943947604.

The previous prime is 100223120969. The next prime is 100223121013. The reversal of 100223121001 is 100121322001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100121322001 = 26737 ⋅3744673.

It is a cyclic number.

It is not a de Polignac number, because 100223121001 - 2⁵ = 100223120969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100223121601) 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, 139586161 + ... + 139586878.

It is an arithmetic number, because the mean of its divisors is an integer number (25125573600).

Almost surely, 2^100223121001 is an apocalyptic number.

It is an amenable number.

100223121001 is a deficient number, since it is larger than the sum of its proper divisors (279173399).

100223121001 is an equidigital number, since it uses as much as digits as its factorization.

100223121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279173398.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100223121001 its reverse (100121322001), we get a palindrome (200344443002).

The spelling of 100223121001 in words is "one hundred billion, two hundred twenty-three million, one hundred twenty-one thousand, one".