16227207121 has 8 divisors (see below), whose sum is σ = 16274617344. Its totient is φ = 16179823920.

The previous prime is 16227207109. The next prime is 16227207133. The reversal of 16227207121 is 12170272261.

It is an interprime number because it is at equal distance from previous prime (16227207109) and next prime (16227207133).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16227207121 - 2²¹ = 16225109969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16227207151) 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, 2185906 + ... + 2193316.

It is an arithmetic number, because the mean of its divisors is an integer number (2034327168).

Almost surely, 2^16227207121 is an apocalyptic number.

It is an amenable number.

16227207121 is a deficient number, since it is larger than the sum of its proper divisors (47410223).

16227207121 is an equidigital number, since it uses as much as digits as its factorization.

16227207121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13511.

The product of its (nonzero) digits is 4704, while the sum is 31.

Adding to 16227207121 its reverse (12170272261), we get a palindrome (28397479382).

The spelling of 16227207121 in words is "sixteen billion, two hundred twenty-seven million, two hundred seven thousand, one hundred twenty-one".