1002214421 has 8 divisors (see below), whose sum is σ = 1079553720. Its totient is φ = 924910272.

The previous prime is 1002214403. The next prime is 1002214441. The reversal of 1002214421 is 1244122001.

It can be written as a sum of positive squares in 4 ways, for example, as 1188100 + 1001026321 = 1090^2 + 31639^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002214421 - 2⁶ = 1002214357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002214421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002214441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108251 + ... + 117143.

It is an arithmetic number, because the mean of its divisors is an integer number (134944215).

Almost surely, 2^1002214421 is an apocalyptic number.

It is an amenable number.

1002214421 is a deficient number, since it is larger than the sum of its proper divisors (77339299).

1002214421 is an equidigital number, since it uses as much as digits as its factorization.

1002214421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17575.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1002214421 is about 31657.7703099887. The cubic root of 1002214421 is about 1000.7375961515.

Adding to 1002214421 its reverse (1244122001), we get a palindrome (2246336422).

The spelling of 1002214421 in words is "one billion, two million, two hundred fourteen thousand, four hundred twenty-one".