1000002021201 has 12 divisors (see below), whose sum is σ = 1455820966912. Its totient is φ = 661418658936.

The previous prime is 1000002021199. The next prime is 1000002021223. The reversal of 1000002021201 is 1021202000001.

It is not a de Polignac number, because 1000002021201 - 2¹ = 1000002021199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1000002026201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437445061 + ... + 437447346.

Almost surely, 2^{1000002021201} is an apocalyptic number.

It is an amenable number.

1000002021201 is a deficient number, since it is larger than the sum of its proper divisors (455818945711).

1000002021201 is a wasteful number, since it uses less digits than its factorization.

1000002021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874892540 (or 874892537 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1000002021201 its reverse (1021202000001), we get a palindrome (2021204021202).

The spelling of 1000002021201 in words is "one trillion, two million, twenty-one thousand, two hundred one".