1003210022021 has 8 divisors (see below), whose sum is σ = 1004274877464. Its totient is φ = 1002145730560.

The previous prime is 1003210022011. The next prime is 1003210022033. The reversal of 1003210022021 is 1202200123001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6728920900 + 996481101121 = 82030^2 + 998239^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003210022021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003210021987 and 1003210022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003210022011) 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, 3467285 + ... + 3745461.

It is an arithmetic number, because the mean of its divisors is an integer number (125534359683).

Almost surely, 2^{1003210022021} is an apocalyptic number.

It is an amenable number.

1003210022021 is a deficient number, since it is larger than the sum of its proper divisors (1064855443).

1003210022021 is a wasteful number, since it uses less digits than its factorization.

1003210022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281991.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1003210022021 its reverse (1202200123001), we get a palindrome (2205410145022).

The spelling of 1003210022021 in words is "one trillion, three billion, two hundred ten million, twenty-two thousand, twenty-one".