73222111 has 4 divisors (see below), whose sum is σ = 77529312. Its totient is φ = 68914912.

The previous prime is 73222109. The next prime is 73222117. The reversal of 73222111 is 11122237.

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 73222111 - 2¹ = 73222109 is a prime.

It is a super-2 number, since 2×73222111² = 10722955078592642, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73222117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153575 + ... + 2153608.

It is an arithmetic number, because the mean of its divisors is an integer number (19382328).

Almost surely, 2^73222111 is an apocalyptic number.

73222111 is a deficient number, since it is larger than the sum of its proper divisors (4307201).

73222111 is a wasteful number, since it uses less digits than its factorization.

73222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307200.

The product of its digits is 168, while the sum is 19.

The square root of 73222111 is about 8556.9919364225. The cubic root of 73222111 is about 418.3573613425.

Adding to 73222111 its reverse (11122237), we get a palindrome (84344348).

The spelling of 73222111 in words is "seventy-three million, two hundred twenty-two thousand, one hundred eleven".