2221471378 has 8 divisors (see below), whose sum is σ = 3808236672. Its totient is φ = 952059156.

The previous prime is 2221471367. The next prime is 2221471423. The reversal of 2221471378 is 8731741222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79338250 + ... + 79338277.

It is an arithmetic number, because the mean of its divisors is an integer number (476029584).

Almost surely, 2^2221471378 is an apocalyptic number.

2221471378 is a deficient number, since it is larger than the sum of its proper divisors (1586765294).

2221471378 is a wasteful number, since it uses less digits than its factorization.

2221471378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158676536.

The product of its digits is 37632, while the sum is 37.

The square root of 2221471378 is about 47132.4875006614. The cubic root of 2221471378 is about 1304.8088910460.

The spelling of 2221471378 in words is "two billion, two hundred twenty-one million, four hundred seventy-one thousand, three hundred seventy-eight".