100102021223 has 4 divisors (see below), whose sum is σ = 100102706880. Its totient is φ = 100101335568.

The previous prime is 100102021219. The next prime is 100102021259. The reversal of 100102021223 is 322120201001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 322120201001 = 2339 ⋅137717059.

It is a cyclic number.

It is not a de Polignac number, because 100102021223 - 2² = 100102021219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100102021198 and 100102021207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102021823) 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, 26615 + ... + 448232.

It is an arithmetic number, because the mean of its divisors is an integer number (25025676720).

Almost surely, 2^100102021223 is an apocalyptic number.

100102021223 is a deficient number, since it is larger than the sum of its proper divisors (685657).

100102021223 is an equidigital number, since it uses as much as digits as its factorization.

100102021223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685656.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 100102021223 its reverse (322120201001), we get a palindrome (422222222224).

The spelling of 100102021223 in words is "one hundred billion, one hundred two million, twenty-one thousand, two hundred twenty-three".