1225806122 has 8 divisors (see below), whose sum is σ = 1839878400. Its totient is φ = 612513324.

The previous prime is 1225806119. The next prime is 1225806139. The reversal of 1225806122 is 2216085221.

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, 190922 + ... + 197237.

It is an arithmetic number, because the mean of its divisors is an integer number (229984800).

Almost surely, 2^1225806122 is an apocalyptic number.

1225806122 is a deficient number, since it is larger than the sum of its proper divisors (614072278).

1225806122 is a wasteful number, since it uses less digits than its factorization.

1225806122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389740.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1225806122 is about 35011.5141346386. The cubic root of 1225806122 is about 1070.2221339844. Note that the first 3 decimals are identical.

The spelling of 1225806122 in words is "one billion, two hundred twenty-five million, eight hundred six thousand, one hundred twenty-two".