105722011 has 4 divisors (see below), whose sum is σ = 105827800. Its totient is φ = 105616224.

The previous prime is 105722003. The next prime is 105722017. The reversal of 105722011 is 110227501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105722011 - 2³ = 105722003 is a prime.

It is a super-2 number, since 2×105722011² = 22354287219768242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105722011.

It is not an unprimeable number, because it can be changed into a prime (105722017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51381 + ... + 53398.

It is an arithmetic number, because the mean of its divisors is an integer number (26456950).

Almost surely, 2^105722011 is an apocalyptic number.

105722011 is a deficient number, since it is larger than the sum of its proper divisors (105789).

105722011 is a wasteful number, since it uses less digits than its factorization.

105722011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105788.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 105722011 is about 10282.1209387947. The cubic root of 105722011 is about 472.8482708033.

Adding to 105722011 its reverse (110227501), we get a palindrome (215949512).

The spelling of 105722011 in words is "one hundred five million, seven hundred twenty-two thousand, eleven".