221122002151 has 2 divisors, whose sum is σ = 221122002152. Its totient is φ = 221122002150.

The previous prime is 221122002019. The next prime is 221122002221. The reversal of 221122002151 is 151200221122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221122002151 - 2¹¹ = 221122000103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221122002851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561001075 + 110561001076.

It is an arithmetic number, because the mean of its divisors is an integer number (110561001076).

Almost surely, 2^221122002151 is an apocalyptic number.

221122002151 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122002151 is an equidigital number, since it uses as much as digits as its factorization.

221122002151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 221122002151 its reverse (151200221122), we get a palindrome (372322223273).

The spelling of 221122002151 in words is "two hundred twenty-one billion, one hundred twenty-two million, two thousand, one hundred fifty-one".