2222000078938 has 4 divisors (see below), whose sum is σ = 3333000118410. Its totient is φ = 1111000039468.

The previous prime is 2222000078897. The next prime is 2222000078939. The reversal of 2222000078938 is 8398700002222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2209958747649 + 12041331289 = 1486593^2 + 109733^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2222000078894 and 2222000078903.

It is not an unprimeable number, because it can be changed into a prime (2222000078939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555500019733 + ... + 555500019736.

Almost surely, 2^{2222000078938} is an apocalyptic number.

2222000078938 is a deficient number, since it is larger than the sum of its proper divisors (1111000039472).

2222000078938 is a wasteful number, since it uses less digits than its factorization.

2222000078938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111000039471.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 2222000078938 in words is "two trillion, two hundred twenty-two billion, seventy-eight thousand, nine hundred thirty-eight".