11212151 has 2 divisors, whose sum is σ = 11212152. Its totient is φ = 11212150.

The previous prime is 11212141. The next prime is 11212153. The reversal of 11212151 is 15121211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11212151 - 2¹⁸ = 10950007 is a prime.

Together with 11212153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11212153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606075 + 5606076.

It is an arithmetic number, because the mean of its divisors is an integer number (5606076).

Almost surely, 2^11212151 is an apocalyptic number.

11212151 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212151 is an equidigital number, since it uses as much as digits as its factorization.

11212151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20, while the sum is 14.

The square root of 11212151 is about 3348.4550168697. The cubic root of 11212151 is about 223.8186710145.

Adding to 11212151 its reverse (15121211), we get a palindrome (26333362).

The spelling of 11212151 in words is "eleven million, two hundred twelve thousand, one hundred fifty-one".