22215210716 has 24 divisors (see below), whose sum is σ = 39131164800. Its totient is φ = 11035092992.

The previous prime is 22215210709. The next prime is 22215210733. The reversal of 22215210716 is 61701251222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391925 + ... + 445011.

It is an arithmetic number, because the mean of its divisors is an integer number (1630465200).

Almost surely, 2^22215210716 is an apocalyptic number.

It is an amenable number.

22215210716 is a deficient number, since it is larger than the sum of its proper divisors (16915954084).

22215210716 is a wasteful number, since it uses less digits than its factorization.

22215210716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53773 (or 53771 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 22215210716 its reverse (61701251222), we get a palindrome (83916461938).

The spelling of 22215210716 in words is "twenty-two billion, two hundred fifteen million, two hundred ten thousand, seven hundred sixteen".