1020021002102 has 16 divisors (see below), whose sum is σ = 1531259603712. Its totient is φ = 509601239400.

The previous prime is 1020021002071. The next prime is 1020021002173. The reversal of 1020021002102 is 2012001200201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23453477 + ... + 23496927.

It is an arithmetic number, because the mean of its divisors is an integer number (95703725232).

Almost surely, 2^{1020021002102} is an apocalyptic number.

1020021002102 is a deficient number, since it is larger than the sum of its proper divisors (511238601610).

1020021002102 is a wasteful number, since it uses less digits than its factorization.

1020021002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52603.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1020021002102 its reverse (2012001200201), we get a palindrome (3032022202303).

The spelling of 1020021002102 in words is "one trillion, twenty billion, twenty-one million, two thousand, one hundred two".