22031320215 has 16 divisors (see below), whose sum is σ = 35258041728. Its totient is φ = 11747394336.

The previous prime is 22031320189. The next prime is 22031320231. The reversal of 22031320215 is 51202313022.

It is not a de Polignac number, because 22031320215 - 2¹⁴ = 22031303831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22031320191 and 22031320200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95337 + ... + 230546.

It is an arithmetic number, because the mean of its divisors is an integer number (2203627608).

Almost surely, 2^22031320215 is an apocalyptic number.

22031320215 is a deficient number, since it is larger than the sum of its proper divisors (13226721513).

22031320215 is a wasteful number, since it uses less digits than its factorization.

22031320215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330398.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 22031320215 its reverse (51202313022), we get a palindrome (73233633237).

The spelling of 22031320215 in words is "twenty-two billion, thirty-one million, three hundred twenty thousand, two hundred fifteen".