221422124600164 has 24 divisors (see below), whose sum is σ = 387891803398176. Its totient is φ = 110595948600000.

The previous prime is 221422124600147. The next prime is 221422124600167. The reversal of 221422124600164 is 461006421224122.

It is not an unprimeable number, because it can be changed into a prime (221422124600167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9856584 + ... + 23237824.

It is an arithmetic number, because the mean of its divisors is an integer number (16162158474924).

Almost surely, 2^{221422124600164} is an apocalyptic number.

It is an amenable number.

221422124600164 is a deficient number, since it is larger than the sum of its proper divisors (166469678798012).

221422124600164 is a wasteful number, since it uses less digits than its factorization.

221422124600164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13385547 (or 13385545 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 37.

Adding to 221422124600164 its reverse (461006421224122), we get a palindrome (682428545824286).

The spelling of 221422124600164 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one hundred twenty-four million, six hundred thousand, one hundred sixty-four".