1002202020001 has 24 divisors (see below), whose sum is σ = 1271398369920. Its totient is φ = 782913654432.

The previous prime is 1002202019999. The next prime is 1002202020007. The reversal of 1002202020001 is 1000202022001.

It is not a de Polignac number, because 1002202020001 - 2¹ = 1002202019999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002202020001.

It is not an unprimeable number, because it can be changed into a prime (1002202020007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9907371 + ... + 10008016.

It is an arithmetic number, because the mean of its divisors is an integer number (52974932080).

Almost surely, 2^{1002202020001} is an apocalyptic number.

It is an amenable number.

1002202020001 is a deficient number, since it is larger than the sum of its proper divisors (269196349919).

1002202020001 is a wasteful number, since it uses less digits than its factorization.

1002202020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19915493 (or 19915486 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 1002202020001 its reverse (1000202022001), we get a palindrome (2002404042002).

The spelling of 1002202020001 in words is "one trillion, two billion, two hundred two million, twenty thousand, one".