1421003221224 has 64 divisors (see below), whose sum is σ = 3587979205440. Its totient is φ = 468939033600.

The previous prime is 1421003221219. The next prime is 1421003221229. The reversal of 1421003221224 is 4221223001241.

It is an interprime number because it is at equal distance from previous prime (1421003221219) and next prime (1421003221229).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1421003221194 and 1421003221203.

It is not an unprimeable number, because it can be changed into a prime (1421003221229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53161927 + ... + 53188649.

It is an arithmetic number, because the mean of its divisors is an integer number (56062175085).

Almost surely, 2^{1421003221224} is an apocalyptic number.

It is an amenable number.

1421003221224 is an abundant number, since it is smaller than the sum of its proper divisors (2166975984216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421003221224 is a wasteful number, since it uses less digits than its factorization.

1421003221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48770 (or 48766 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1421003221224 its reverse (4221223001241), we get a palindrome (5642226222465).

The spelling of 1421003221224 in words is "one trillion, four hundred twenty-one billion, three million, two hundred twenty-one thousand, two hundred twenty-four".