1222650605 has 16 divisors (see below), whose sum is σ = 1637786304. Its totient is φ = 868519680.

The previous prime is 1222650593. The next prime is 1222650619. The reversal of 1222650605 is 5060562221.

It is not a de Polignac number, because 1222650605 - 2²⁰ = 1221602029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256124 + ... + 260853.

It is an arithmetic number, because the mean of its divisors is an integer number (102361644).

Almost surely, 2^1222650605 is an apocalyptic number.

It is an amenable number.

1222650605 is a deficient number, since it is larger than the sum of its proper divisors (415135699).

1222650605 is a wasteful number, since it uses less digits than its factorization.

1222650605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517036.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1222650605 is about 34966.4211065416. The cubic root of 1222650605 is about 1069.3030092681.

The spelling of 1222650605 in words is "one billion, two hundred twenty-two million, six hundred fifty thousand, six hundred five".