2220201251 has 2 divisors, whose sum is σ = 2220201252. Its totient is φ = 2220201250.

The previous prime is 2220201239. The next prime is 2220201253. The reversal of 2220201251 is 1521020222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2220201251 - 2⁶ = 2220201187 is a prime.

Together with 2220201253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2220201253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110100625 + 1110100626.

It is an arithmetic number, because the mean of its divisors is an integer number (1110100626).

Almost surely, 2^2220201251 is an apocalyptic number.

2220201251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220201251 is an equidigital number, since it uses as much as digits as its factorization.

2220201251 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 17.

The square root of 2220201251 is about 47119.0115664580. The cubic root of 2220201251 is about 1304.5601686650.

Adding to 2220201251 its reverse (1521020222), we get a palindrome (3741221473).

The spelling of 2220201251 in words is "two billion, two hundred twenty million, two hundred one thousand, two hundred fifty-one".