105042210215 has 4 divisors (see below), whose sum is σ = 126050652264. Its totient is φ = 84033768168.

The previous prime is 105042210211. The next prime is 105042210253. The reversal of 105042210215 is 512012240501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512012240501 = 43 ⋅11907261407.

It is a cyclic number.

It is not a de Polignac number, because 105042210215 - 2² = 105042210211 is a prime.

It is a super-2 number, since 2×105042210215² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105042210211) 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, 10504221017 + ... + 10504221026.

It is an arithmetic number, because the mean of its divisors is an integer number (31512663066).

Almost surely, 2^105042210215 is an apocalyptic number.

105042210215 is a deficient number, since it is larger than the sum of its proper divisors (21008442049).

105042210215 is an equidigital number, since it uses as much as digits as its factorization.

105042210215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21008442048.

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 105042210215 its reverse (512012240501), we get a palindrome (617054450716).

The spelling of 105042210215 in words is "one hundred five billion, forty-two million, two hundred ten thousand, two hundred fifteen".