1021002012102 has 32 divisors (see below), whose sum is σ = 2091426624000. Its totient is φ = 332138402208.

The previous prime is 1021002012097. The next prime is 1021002012103. The reversal of 1021002012102 is 2012102001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021002012103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5088652 + ... + 5285487.

It is an arithmetic number, because the mean of its divisors is an integer number (65357082000).

Almost surely, 2^{1021002012102} is an apocalyptic number.

1021002012102 is an abundant number, since it is smaller than the sum of its proper divisors (1070424611898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021002012102 is a wasteful number, since it uses less digits than its factorization.

1021002012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10374540.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1021002012102 its reverse (2012102001201), we get a palindrome (3033104013303).

The spelling of 1021002012102 in words is "one trillion, twenty-one billion, two million, twelve thousand, one hundred two".