1020001012102 has 4 divisors (see below), whose sum is σ = 1530001518156. Its totient is φ = 510000506050.

The previous prime is 1020001012099. The next prime is 1020001012207. The reversal of 1020001012102 is 2012101000201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255000253024 + ... + 255000253027.

It is an arithmetic number, because the mean of its divisors is an integer number (382500379539).

Almost surely, 2^{1020001012102} is an apocalyptic number.

1020001012102 is a deficient number, since it is larger than the sum of its proper divisors (510000506054).

1020001012102 is an equidigital number, since it uses as much as digits as its factorization.

1020001012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510000506053.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1020001012102 its reverse (2012101000201), we get a palindrome (3032102012303).

The spelling of 1020001012102 in words is "one trillion, twenty billion, one million, twelve thousand, one hundred two".