1034020221 has 16 divisors (see below), whose sum is σ = 1532643840. Its totient is φ = 615792960.

The previous prime is 1034020213. The next prime is 1034020231. The reversal of 1034020221 is 1220204301.

It is not a de Polignac number, because 1034020221 - 2³ = 1034020213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1034020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1034020231) 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, 426426 + ... + 428843.

It is an arithmetic number, because the mean of its divisors is an integer number (95790240).

Almost surely, 2^1034020221 is an apocalyptic number.

It is an amenable number.

1034020221 is a deficient number, since it is larger than the sum of its proper divisors (498623619).

1034020221 is a wasteful number, since it uses less digits than its factorization.

1034020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855316.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1034020221 is about 32156.1848016832. The cubic root of 1034020221 is about 1011.2138531157.

Adding to 1034020221 its reverse (1220204301), we get a palindrome (2254224522).

The spelling of 1034020221 in words is "one billion, thirty-four million, twenty thousand, two hundred twenty-one".