10015121223 has 6 divisors (see below), whose sum is σ = 14466286224. Its totient is φ = 6676747476.

The previous prime is 10015121201. The next prime is 10015121227. The reversal of 10015121223 is 32212151001.

It is not a de Polignac number, because 10015121223 - 2⁶ = 10015121159 is a prime.

It is a super-2 number, since 2×10015121223² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10015121196 and 10015121205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10015121227) 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 5 ways as a sum of consecutive naturals, for example, 556395615 + ... + 556395632.

It is an arithmetic number, because the mean of its divisors is an integer number (2411047704).

Almost surely, 2^10015121223 is an apocalyptic number.

10015121223 is a deficient number, since it is larger than the sum of its proper divisors (4451165001).

10015121223 is a wasteful number, since it uses less digits than its factorization.

10015121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112791253 (or 1112791250 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 10015121223 its reverse (32212151001), we get a palindrome (42227272224).

The spelling of 10015121223 in words is "ten billion, fifteen million, one hundred twenty-one thousand, two hundred twenty-three".