1002021221301 has 16 divisors (see below), whose sum is σ = 1337033556096. Its totient is φ = 667511709696.

The previous prime is 1002021221249. The next prime is 1002021221321. The reversal of 1002021221301 is 1031221202001.

It is not a de Polignac number, because 1002021221301 - 2¹⁷ = 1002021090229 is a prime.

It is a super-2 number, since 2×1002021221301² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002021221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23592981 + ... + 23635413.

It is an arithmetic number, because the mean of its divisors is an integer number (83564597256).

Almost surely, 2^{1002021221301} is an apocalyptic number.

It is an amenable number.

1002021221301 is a deficient number, since it is larger than the sum of its proper divisors (335012334795).

1002021221301 is a wasteful number, since it uses less digits than its factorization.

1002021221301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48172.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1002021221301 its reverse (1031221202001), we get a palindrome (2033242423302).

The spelling of 1002021221301 in words is "one trillion, two billion, twenty-one million, two hundred twenty-one thousand, three hundred one".