212213151 has 6 divisors (see below), whose sum is σ = 306530120. Its totient is φ = 141475428.

The previous prime is 212213149. The next prime is 212213153. The reversal of 212213151 is 151312212.

It is an interprime number because it is at equal distance from previous prime (212213149) and next prime (212213153).

It is not a de Polignac number, because 212213151 - 2¹ = 212213149 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 (212213153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11789611 + ... + 11789628.

Almost surely, 2^212213151 is an apocalyptic number.

212213151 is a deficient number, since it is larger than the sum of its proper divisors (94316969).

212213151 is a wasteful number, since it uses less digits than its factorization.

212213151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23579245 (or 23579242 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 212213151 is about 14567.5375750331. The cubic root of 212213151 is about 596.4729656742.

Adding to 212213151 its reverse (151312212), we get a palindrome (363525363).

The spelling of 212213151 in words is "two hundred twelve million, two hundred thirteen thousand, one hundred fifty-one".