1222022636 has 12 divisors (see below), whose sum is σ = 2139205320. Its totient is φ = 610821120.

The previous prime is 1222022623. The next prime is 1222022651. The reversal of 1222022636 is 6362202221.

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, 32570 + ... + 59201.

It is an arithmetic number, because the mean of its divisors is an integer number (178267110).

Almost surely, 2^1222022636 is an apocalyptic number.

It is an amenable number.

1222022636 is a deficient number, since it is larger than the sum of its proper divisors (917182684).

1222022636 is a wasteful number, since it uses less digits than its factorization.

1222022636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95104 (or 95102 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1222022636 is about 34957.4403525201. The cubic root of 1222022636 is about 1069.1199086796.

Adding to 1222022636 its reverse (6362202221), we get a palindrome (7584224857).

The spelling of 1222022636 in words is "one billion, two hundred twenty-two million, twenty-two thousand, six hundred thirty-six".