10121213223 has 16 divisors (see below), whose sum is σ = 16357516800. Its totient is φ = 6134068440.

The previous prime is 10121213209. The next prime is 10121213231. The reversal of 10121213223 is 32231212101.

It is not a de Polignac number, because 10121213223 - 2²⁰ = 10120164647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10121213196 and 10121213205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121213293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17038783 + ... + 17039376.

It is an arithmetic number, because the mean of its divisors is an integer number (1022344800).

Almost surely, 2^10121213223 is an apocalyptic number.

10121213223 is a deficient number, since it is larger than the sum of its proper divisors (6236303577).

10121213223 is a wasteful number, since it uses less digits than its factorization.

10121213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34078179 (or 34078173 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10121213223 its reverse (32231212101), we get a palindrome (42352425324).

The spelling of 10121213223 in words is "ten billion, one hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-three".