2211122702378 has 4 divisors (see below), whose sum is σ = 3316684053570. Its totient is φ = 1105561351188.

The previous prime is 2211122702377. The next prime is 2211122702413. The reversal of 2211122702378 is 8732072211122.

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., 2152050858169 + 59071844209 = 1466987^2 + 243047^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2211122702377) by changing a digit.

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 as a sum of consecutive naturals, namely, 552780675593 + ... + 552780675596.

Almost surely, 2^{2211122702378} is an apocalyptic number.

2211122702378 is a deficient number, since it is larger than the sum of its proper divisors (1105561351192).

2211122702378 is a wasteful number, since it uses less digits than its factorization.

2211122702378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105561351191.

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 2211122702378 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, seven hundred two thousand, three hundred seventy-eight".