1002035221 has 16 divisors (see below), whose sum is σ = 1124222400. Its totient is φ = 885098880.

The previous prime is 1002035219. The next prime is 1002035257. The reversal of 1002035221 is 1225302001.

It is a cyclic number.

It is not a de Polignac number, because 1002035221 - 2¹ = 1002035219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002035195 and 1002035204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002035821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425770 + ... + 428116.

It is an arithmetic number, because the mean of its divisors is an integer number (70263900).

Almost surely, 2^1002035221 is an apocalyptic number.

1002035221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002035221 is a deficient number, since it is larger than the sum of its proper divisors (122187179).

1002035221 is a wasteful number, since it uses less digits than its factorization.

1002035221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3444.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1002035221 is about 31654.9399146484. The cubic root of 1002035221 is about 1000.6779472836.

Adding to 1002035221 its reverse (1225302001), we get a palindrome (2227337222).

The spelling of 1002035221 in words is "one billion, two million, thirty-five thousand, two hundred twenty-one".