1226446221 has 64 divisors (see below), whose sum is σ = 2271467520. Its totient is φ = 567786240.

The previous prime is 1226446217. The next prime is 1226446223.

1226446221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1226446221 - 2² = 1226446217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226446223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80046 + ... + 94128.

It is an arithmetic number, because the mean of its divisors is an integer number (35491680).

Almost surely, 2^1226446221 is an apocalyptic number.

1226446221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1226446221 is a deficient number, since it is larger than the sum of its proper divisors (1045021299).

1226446221 is a wasteful number, since it uses less digits than its factorization.

1226446221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14146.

The product of its digits is 9216, while the sum is 30.

The square root of 1226446221 is about 35020.6542057683. The cubic root of 1226446221 is about 1070.4083866333.

It can be divided in two parts, 12264 and 46221, that added together give a palindrome (58485).

The spelling of 1226446221 in words is "one billion, two hundred twenty-six million, four hundred forty-six thousand, two hundred twenty-one".