21224510216162 has 16 divisors (see below), whose sum is σ = 35578114687584. Its totient is φ = 9412199652000.

The previous prime is 21224510216153. The next prime is 21224510216179. The reversal of 21224510216162 is 26161201542212.

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, 11765248664 + ... + 11765250467.

It is an arithmetic number, because the mean of its divisors is an integer number (2223632167974).

Almost surely, 2^{21224510216162} is an apocalyptic number.

21224510216162 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21224510216162 is a deficient number, since it is larger than the sum of its proper divisors (14353604471422).

21224510216162 is a wasteful number, since it uses less digits than its factorization.

21224510216162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23530499185.

The product of its (nonzero) digits is 23040, while the sum is 35.

Adding to 21224510216162 its reverse (26161201542212), we get a palindrome (47385711758374).

The spelling of 21224510216162 in words is "twenty-one trillion, two hundred twenty-four billion, five hundred ten million, two hundred sixteen thousand, one hundred sixty-two".