10122121223 has 4 divisors (see below), whose sum is σ = 10164121968. Its totient is φ = 10080120480.

The previous prime is 10122121213. The next prime is 10122121259. The reversal of 10122121223 is 32212122101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32212122101 = 97 ⋅332083733.

It is a cyclic number.

It is not a de Polignac number, because 10122121223 - 2⁶ = 10122121159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122121213) 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, 21000011 + ... + 21000492.

It is an arithmetic number, because the mean of its divisors is an integer number (2541030492).

Almost surely, 2^10122121223 is an apocalyptic number.

10122121223 is a deficient number, since it is larger than the sum of its proper divisors (42000745).

10122121223 is an equidigital number, since it uses as much as digits as its factorization.

10122121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42000744.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10122121223 its reverse (32212122101), we get a palindrome (42334243324).

The spelling of 10122121223 in words is "ten billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-three".