212002151 has 4 divisors (see below), whose sum is σ = 219312600. Its totient is φ = 204691704.

The previous prime is 212002129. The next prime is 212002181. The reversal of 212002151 is 151200212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212002151 - 2¹⁸ = 211740007 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 (212002111) 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, 3655181 + ... + 3655238.

It is an arithmetic number, because the mean of its divisors is an integer number (54828150).

Almost surely, 2^212002151 is an apocalyptic number.

212002151 is a deficient number, since it is larger than the sum of its proper divisors (7310449).

212002151 is an equidigital number, since it uses as much as digits as its factorization.

212002151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310448.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 212002151 is about 14560.2936440169. The cubic root of 212002151 is about 596.2752124085.

Adding to 212002151 its reverse (151200212), we get a palindrome (363202363).

The spelling of 212002151 in words is "two hundred twelve million, two thousand, one hundred fifty-one".