1222411636 has 12 divisors (see below), whose sum is σ = 2232230112. Its totient is φ = 584631608.

The previous prime is 1222411621. The next prime is 1222411637. The reversal of 1222411636 is 6361142221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222411637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6643450 + ... + 6643633.

It is an arithmetic number, because the mean of its divisors is an integer number (186019176).

Almost surely, 2^1222411636 is an apocalyptic number.

It is an amenable number.

1222411636 is a deficient number, since it is larger than the sum of its proper divisors (1009818476).

1222411636 is a wasteful number, since it uses less digits than its factorization.

1222411636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287110 (or 13287108 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 1222411636 is about 34963.0038183220. The cubic root of 1222411636 is about 1069.2333390725.

Adding to 1222411636 its reverse (6361142221), we get a palindrome (7583553857).

The spelling of 1222411636 in words is "one billion, two hundred twenty-two million, four hundred eleven thousand, six hundred thirty-six".