105143222450 has 54 divisors (see below), whose sum is σ = 227530333053. Its totient is φ = 36043602000.

The previous prime is 105143222389. The next prime is 105143222461. The reversal of 105143222450 is 54222341501.

It can be written as a sum of positive squares in 2 ways, for example, as 103040358001 + 2102864449 = 320999^2 + 45857^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=229285.

It is a super-2 number, since 2×105143222450² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16046675 + ... + 16053225.

Almost surely, 2^105143222450 is an apocalyptic number.

105143222450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105143222450 is an abundant number, since it is smaller than the sum of its proper divisors (122387110603).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105143222450 is an frugal number, since it uses more digits than its factorization.

105143222450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13128 (or 6565 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 105143222450 its reverse (54222341501), we get a palindrome (159365563951).

The spelling of 105143222450 in words is "one hundred five billion, one hundred forty-three million, two hundred twenty-two thousand, four hundred fifty".