21216602342162 has 16 divisors (see below), whose sum is σ = 31922404173600. Its totient is φ = 10575803668320.

The previous prime is 21216602342161. The next prime is 21216602342179. The reversal of 21216602342162 is 26124320661212.

It is not an unprimeable number, because it can be changed into a prime (21216602342161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15233414 + ... + 16567742.

It is an arithmetic number, because the mean of its divisors is an integer number (1995150260850).

Almost surely, 2^{21216602342162} is an apocalyptic number.

21216602342162 is a deficient number, since it is larger than the sum of its proper divisors (10705801831438).

21216602342162 is a wasteful number, since it uses less digits than its factorization.

21216602342162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358681.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 21216602342162 in words is "twenty-one trillion, two hundred sixteen billion, six hundred two million, three hundred forty-two thousand, one hundred sixty-two".