222012151 has 2 divisors, whose sum is σ = 222012152. Its totient is φ = 222012150.

The previous prime is 222012127. The next prime is 222012157. The reversal of 222012151 is 151210222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222012151 - 2¹⁵ = 221979383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222012157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111006075 + 111006076.

It is an arithmetic number, because the mean of its divisors is an integer number (111006076).

Almost surely, 2^222012151 is an apocalyptic number.

222012151 is a deficient number, since it is larger than the sum of its proper divisors (1).

222012151 is an equidigital number, since it uses as much as digits as its factorization.

222012151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 222012151 is about 14900.0721810332. The cubic root of 222012151 is about 605.5159417318.

Adding to 222012151 its reverse (151210222), we get a palindrome (373222373).

The spelling of 222012151 in words is "two hundred twenty-two million, twelve thousand, one hundred fifty-one".