216212316151 has 16 divisors (see below), whose sum is σ = 233240847840. Its totient is φ = 199240778880.

The previous prime is 216212316137. The next prime is 216212316217. The reversal of 216212316151 is 151613212612.

It is not a de Polignac number, because 216212316151 - 2³⁵ = 181852577783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216212316251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21315541 + ... + 21325681.

It is an arithmetic number, because the mean of its divisors is an integer number (14577552990).

Almost surely, 2^216212316151 is an apocalyptic number.

216212316151 is a deficient number, since it is larger than the sum of its proper divisors (17028531689).

216212316151 is a wasteful number, since it uses less digits than its factorization.

216212316151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12786.

The product of its digits is 4320, while the sum is 31.

Adding to 216212316151 its reverse (151613212612), we get a palindrome (367825528763).

The spelling of 216212316151 in words is "two hundred sixteen billion, two hundred twelve million, three hundred sixteen thousand, one hundred fifty-one".