222601028378 has 16 divisors (see below), whose sum is σ = 337262650344. Its totient is φ = 110180505600.

The previous prime is 222601028369. The next prime is 222601028387. The reversal of 222601028378 is 873820106222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222601028369) and next prime (222601028387).

It can be written as a sum of positive squares in 4 ways, for example, as 217834092529 + 4766935849 = 466727^2 + 69043^2 .

It is a super-2 number, since 2×222601028378² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193126 + ... + 1367022.

Almost surely, 2^222601028378 is an apocalyptic number.

222601028378 is a deficient number, since it is larger than the sum of its proper divisors (114661621966).

222601028378 is a wasteful number, since it uses less digits than its factorization.

222601028378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180337.

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 222601028378 in words is "two hundred twenty-two billion, six hundred one million, twenty-eight thousand, three hundred seventy-eight".