222220357 has 2 divisors, whose sum is σ = 222220358. Its totient is φ = 222220356.

The previous prime is 222220343. The next prime is 222220429. The reversal of 222220357 is 753022222.

It is a happy number.

222220357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212984836 + 9235521 = 14594^2 + 3039^2 .

It is a cyclic number.

It is not a de Polignac number, because 222220357 - 2¹¹ = 222218309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222220657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110178 + 111110179.

It is an arithmetic number, because the mean of its divisors is an integer number (111110179).

Almost surely, 2^222220357 is an apocalyptic number.

It is an amenable number.

222220357 is a deficient number, since it is larger than the sum of its proper divisors (1).

222220357 is an equidigital number, since it uses as much as digits as its factorization.

222220357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 222220357 is about 14907.0572884121. The cubic root of 222220357 is about 605.7051696058.

Adding to 222220357 its reverse (753022222), we get a palindrome (975242579).

It can be divided in two parts, 2222 and 20357, that multiplied together give a palindrome (45233254).

The spelling of 222220357 in words is "two hundred twenty-two million, two hundred twenty thousand, three hundred fifty-seven".