1421225224 has 16 divisors (see below), whose sum is σ = 2666141100. Its totient is φ = 710254272.

The previous prime is 1421225203. The next prime is 1421225227. The reversal of 1421225224 is 4225221241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1419028900 + 2196324 = 37670^2 + 1482^2 .

It is a super-2 number, since 2×1421225224² = 4039762274667700352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1421225227) 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 3 ways as a sum of consecutive naturals, for example, 27547 + ... + 60010.

Almost surely, 2^1421225224 is an apocalyptic number.

It is an amenable number.

1421225224 is a deficient number, since it is larger than the sum of its proper divisors (1244915876).

1421225224 is a wasteful number, since it uses less digits than its factorization.

1421225224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89592 (or 89588 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 1421225224 is about 37699.1408920681. The cubic root of 1421225224 is about 1124.3140441193.

Adding to 1421225224 its reverse (4225221241), we get a palindrome (5646446465).

The spelling of 1421225224 in words is "one billion, four hundred twenty-one million, two hundred twenty-five thousand, two hundred twenty-four".