222454651 has 2 divisors, whose sum is σ = 222454652. Its totient is φ = 222454650.

The previous prime is 222454649. The next prime is 222454657. The reversal of 222454651 is 156454222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222454651 - 2¹ = 222454649 is a prime.

Together with 222454649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (222454657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111227325 + 111227326.

It is an arithmetic number, because the mean of its divisors is an integer number (111227326).

Almost surely, 2^222454651 is an apocalyptic number.

222454651 is a deficient number, since it is larger than the sum of its proper divisors (1).

222454651 is an equidigital number, since it uses as much as digits as its factorization.

222454651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 31.

The square root of 222454651 is about 14914.9137107796. The cubic root of 222454651 is about 605.9179662544.

It can be divided in two parts, 22245 and 4651, that added together give a square (26896 = 164²).

The spelling of 222454651 in words is "two hundred twenty-two million, four hundred fifty-four thousand, six hundred fifty-one".