1034021221 has 4 divisors (see below), whose sum is σ = 1046479392. Its totient is φ = 1021563052.

The previous prime is 1034021167. The next prime is 1034021231. The reversal of 1034021221 is 1221204301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1034021221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1034021195 and 1034021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034021231) 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 3 ways as a sum of consecutive naturals, for example, 6228961 + ... + 6229126.

It is an arithmetic number, because the mean of its divisors is an integer number (261619848).

Almost surely, 2^1034021221 is an apocalyptic number.

It is an amenable number.

1034021221 is a deficient number, since it is larger than the sum of its proper divisors (12458171).

1034021221 is an equidigital number, since it uses as much as digits as its factorization.

1034021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12458170.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1034021221 is about 32156.2003507877. The cubic root of 1034021221 is about 1011.2141790970.

Adding to 1034021221 its reverse (1221204301), we get a palindrome (2255225522).

The spelling of 1034021221 in words is "one billion, thirty-four million, twenty-one thousand, two hundred twenty-one".