73222331 has 16 divisors (see below), whose sum is σ = 90365184. Its totient is φ = 57776544.

The previous prime is 73222327. The next prime is 73222343. The reversal of 73222331 is 13322237.

It is not a de Polignac number, because 73222331 - 2² = 73222327 is a prime.

It is a super-2 number, since 2×73222331² = 10723019514147122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73222297 and 73222306.

It is not an unprimeable number, because it can be changed into a prime (73222321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41636 + ... + 43358.

It is an arithmetic number, because the mean of its divisors is an integer number (5647824).

Almost surely, 2^73222331 is an apocalyptic number.

73222331 is a deficient number, since it is larger than the sum of its proper divisors (17142853).

73222331 is a wasteful number, since it uses less digits than its factorization.

73222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210.

The product of its digits is 1512, while the sum is 23.

The square root of 73222331 is about 8557.0047913975. The cubic root of 73222331 is about 418.3577803349.

Adding to 73222331 its reverse (13322237), we get a palindrome (86544568).

The spelling of 73222331 in words is "seventy-three million, two hundred twenty-two thousand, three hundred thirty-one".