21417415307222 has 32 divisors (see below), whose sum is σ = 36262332335520. Its totient is φ = 9397639802880.

The previous prime is 21417415307149. The next prime is 21417415307243. The reversal of 21417415307222 is 22270351471412.

It is a self number, because there is not a number n which added to its sum of digits gives 21417415307222.

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, 66923 + ... + 6545174.

It is an arithmetic number, because the mean of its divisors is an integer number (1133197885485).

Almost surely, 2^{21417415307222} is an apocalyptic number.

21417415307222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21417415307222 is a deficient number, since it is larger than the sum of its proper divisors (14844917028298).

21417415307222 is a wasteful number, since it uses less digits than its factorization.

21417415307222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6617216.

The product of its (nonzero) digits is 188160, while the sum is 41.

Adding to 21417415307222 its reverse (22270351471412), we get a palindrome (43687766778634).

The spelling of 21417415307222 in words is "twenty-one trillion, four hundred seventeen billion, four hundred fifteen million, three hundred seven thousand, two hundred twenty-two".