1020200012002 has 8 divisors (see below), whose sum is σ = 1567624408812. Its totient is φ = 497658542400.

The previous prime is 1020200011991. The next prime is 1020200012023. The reversal of 1020200012002 is 2002100020201.

It can be written as a sum of positive squares in 2 ways, for example, as 810682343641 + 209517668361 = 900379^2 + 457731^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1020200012002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6220731699 + ... + 6220731862.

Almost surely, 2^{1020200012002} is an apocalyptic number.

1020200012002 is a deficient number, since it is larger than the sum of its proper divisors (547424396810).

1020200012002 is a wasteful number, since it uses less digits than its factorization.

1020200012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12441463604.

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

Adding to 1020200012002 its reverse (2002100020201), we get a palindrome (3022300032203).

The spelling of 1020200012002 in words is "one trillion, twenty billion, two hundred million, twelve thousand, two".