1020002100206 has 8 divisors (see below), whose sum is σ = 1582761879720. Its totient is φ = 492414806968.

The previous prime is 1020002100203. The next prime is 1020002100233. The reversal of 1020002100206 is 6020012000201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020002100203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8793121496 + ... + 8793121611.

It is an arithmetic number, because the mean of its divisors is an integer number (197845234965).

Almost surely, 2^{1020002100206} is an apocalyptic number.

1020002100206 is a deficient number, since it is larger than the sum of its proper divisors (562759779514).

1020002100206 is a wasteful number, since it uses less digits than its factorization.

1020002100206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586243138.

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

Adding to 1020002100206 its reverse (6020012000201), we get a palindrome (7040014100407).

The spelling of 1020002100206 in words is "one trillion, twenty billion, two million, one hundred thousand, two hundred six".