212224151 has 8 divisors (see below), whose sum is σ = 222603360. Its totient is φ = 201940992.

The previous prime is 212224139. The next prime is 212224153. The reversal of 212224151 is 151422212.

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 212224151 - 2⁶ = 212224087 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 (212224153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19466 + ... + 28343.

It is an arithmetic number, because the mean of its divisors is an integer number (27825420).

Almost surely, 2^212224151 is an apocalyptic number.

212224151 is a deficient number, since it is larger than the sum of its proper divisors (10379209).

212224151 is a wasteful number, since it uses less digits than its factorization.

212224151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48025.

The product of its digits is 320, while the sum is 20.

The square root of 212224151 is about 14567.9151219383. The cubic root of 212224151 is about 596.4832714905.

Adding to 212224151 its reverse (151422212), we get a palindrome (363646363).

The spelling of 212224151 in words is "two hundred twelve million, two hundred twenty-four thousand, one hundred fifty-one".