103221032021 has 8 divisors (see below), whose sum is σ = 109295777304. Its totient is φ = 97146611200.

The previous prime is 103221032017. The next prime is 103221032059. The reversal of 103221032021 is 120230122301.

It can be written as a sum of positive squares in 4 ways, for example, as 7640508100 + 95580523921 = 87410^2 + 309161^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 103221032021 - 2² = 103221032017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221032921) 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 7 ways as a sum of consecutive naturals, for example, 944411 + ... + 1048023.

It is an arithmetic number, because the mean of its divisors is an integer number (13661972163).

Almost surely, 2^103221032021 is an apocalyptic number.

It is an amenable number.

103221032021 is a deficient number, since it is larger than the sum of its proper divisors (6074745283).

103221032021 is a wasteful number, since it uses less digits than its factorization.

103221032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162231.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103221032021 its reverse (120230122301), we get a palindrome (223451154322).

The spelling of 103221032021 in words is "one hundred three billion, two hundred twenty-one million, thirty-two thousand, twenty-one".