216214245101 has 4 divisors (see below), whose sum is σ = 216361231104. Its totient is φ = 216067259100.

The previous prime is 216214245097. The next prime is 216214245103. The reversal of 216214245101 is 101542412612.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216214245101 - 2² = 216214245097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216214245103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73490795 + ... + 73493736.

It is an arithmetic number, because the mean of its divisors is an integer number (54090307776).

Almost surely, 2^216214245101 is an apocalyptic number.

It is an amenable number.

216214245101 is a deficient number, since it is larger than the sum of its proper divisors (146986003).

216214245101 is a wasteful number, since it uses less digits than its factorization.

216214245101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146986002.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 216214245101 its reverse (101542412612), we get a palindrome (317756657713).

The spelling of 216214245101 in words is "two hundred sixteen billion, two hundred fourteen million, two hundred forty-five thousand, one hundred one".